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Finding the Fourth Proportional to 61,398.92, 84,740.69 and 38,750.27

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Solution

The fourth proportional to 61,398.92, 84,740.69 and 38,750.27 is: 53,481.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,398.92 : 84,740.69 = 38,750.27 : x
  2. Step 2: Convert to fraction form
    61,398.92/84,740.69 = 38,750.27/x
  3. Step 3: Cross multiply
    61,398.92x = 84,740.69 × 38,750.27
  4. Step 4: Simplify right side
    61,398.92x = 3,283,724,290.66
  5. Step 5: Solve for x
    x = 3,283,724,290.66/61,398.92
  6. Step 6: Final answer
    x = 53,481.79

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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.