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Finding the Fourth Proportional to 62,189.17, 85,788.72 and 39,489.32

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Solution

The fourth proportional to 62,189.17, 85,788.72 and 39,489.32 is: 54,474.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,189.17 : 85,788.72 = 39,489.32 : x
  2. Step 2: Convert to fraction form
    62,189.17/85,788.72 = 39,489.32/x
  3. Step 3: Cross multiply
    62,189.17x = 85,788.72 × 39,489.32
  4. Step 4: Simplify right side
    62,189.17x = 3,387,738,430.94
  5. Step 5: Solve for x
    x = 3,387,738,430.94/62,189.17
  6. Step 6: Final answer
    x = 54,474.74

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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.