Home / 81,444.84-112,391.16-45,144.76

Finding the Fourth Proportional to 81,444.84, 112,391.16 and 45,144.76

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Solution

The fourth proportional to 81,444.84, 112,391.16 and 45,144.76 is: 62,298.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,444.84 : 112,391.16 = 45,144.76 : x
  2. Step 2: Convert to fraction form
    81,444.84/112,391.16 = 45,144.76/x
  3. Step 3: Cross multiply
    81,444.84x = 112,391.16 × 45,144.76
  4. Step 4: Simplify right side
    81,444.84x = 5,073,871,944.32
  5. Step 5: Solve for x
    x = 5,073,871,944.32/81,444.84
  6. Step 6: Final answer
    x = 62,298.26

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Half scale
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Double scale
Find fourth proportional to 81,445.84, 112,392.54 and 45,145.76
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.