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Finding the Fourth Proportional to 81,193.32, 112,051.98 and 45,383.46

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Solution

The fourth proportional to 81,193.32, 112,051.98 and 45,383.46 is: 62,632.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,193.32 : 112,051.98 = 45,383.46 : x
  2. Step 2: Convert to fraction form
    81,193.32/112,051.98 = 45,383.46/x
  3. Step 3: Cross multiply
    81,193.32x = 112,051.98 × 45,383.46
  4. Step 4: Simplify right side
    81,193.32x = 5,085,306,552.25
  5. Step 5: Solve for x
    x = 5,085,306,552.25/81,193.32
  6. Step 6: Final answer
    x = 62,632.08

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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.