Home / 91,712.12-126,444.28-59,389.28

Finding the Fourth Proportional to 91,712.12, 126,444.28 and 59,389.28

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Solution

The fourth proportional to 91,712.12, 126,444.28 and 59,389.28 is: 81,880.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,712.12 : 126,444.28 = 59,389.28 : x
  2. Step 2: Convert to fraction form
    91,712.12/126,444.28 = 59,389.28/x
  3. Step 3: Cross multiply
    91,712.12x = 126,444.28 × 59,389.28
  4. Step 4: Simplify right side
    91,712.12x = 7,509,434,749.32
  5. Step 5: Solve for x
    x = 7,509,434,749.32/91,712.12
  6. Step 6: Final answer
    x = 81,880.51

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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.