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Finding the Fourth Proportional to 62,724.80, 86,600.76 and 38,876.78

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Solution

The fourth proportional to 62,724.80, 86,600.76 and 38,876.78 is: 53,675.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,724.80 : 86,600.76 = 38,876.78 : x
  2. Step 2: Convert to fraction form
    62,724.80/86,600.76 = 38,876.78/x
  3. Step 3: Cross multiply
    62,724.80x = 86,600.76 × 38,876.78
  4. Step 4: Simplify right side
    62,724.80x = 3,366,758,694.35
  5. Step 5: Solve for x
    x = 3,366,758,694.35/62,724.80
  6. Step 6: Final answer
    x = 53,675.08

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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.