Home / 62,991.17-86,921.50-38,788.25

Finding the Fourth Proportional to 62,991.17, 86,921.50 and 38,788.25

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Solution

The fourth proportional to 62,991.17, 86,921.50 and 38,788.25 is: 53,523.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,991.17 : 86,921.50 = 38,788.25 : x
  2. Step 2: Convert to fraction form
    62,991.17/86,921.50 = 38,788.25/x
  3. Step 3: Cross multiply
    62,991.17x = 86,921.50 × 38,788.25
  4. Step 4: Simplify right side
    62,991.17x = 3,371,532,872.38
  5. Step 5: Solve for x
    x = 3,371,532,872.38/62,991.17
  6. Step 6: Final answer
    x = 53,523.90

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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.