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Finding the Fourth Proportional to 62,312.70, 85,990.92 and 38,429.82

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Solution

The fourth proportional to 62,312.70, 85,990.92 and 38,429.82 is: 53,032.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,312.70 : 85,990.92 = 38,429.82 : x
  2. Step 2: Convert to fraction form
    62,312.70/85,990.92 = 38,429.82/x
  3. Step 3: Cross multiply
    62,312.70x = 85,990.92 × 38,429.82
  4. Step 4: Simplify right side
    62,312.70x = 3,304,615,577.23
  5. Step 5: Solve for x
    x = 3,304,615,577.23/62,312.70
  6. Step 6: Final answer
    x = 53,032.78

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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.