Home / 83,045.70-124,381.24-38,578.87

Finding the Fourth Proportional to 83,045.70, 124,381.24 and 38,578.87

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Solution

The fourth proportional to 83,045.70, 124,381.24 and 38,578.87 is: 57,781.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,045.70 : 124,381.24 = 38,578.87 : x
  2. Step 2: Convert to fraction form
    83,045.70/124,381.24 = 38,578.87/x
  3. Step 3: Cross multiply
    83,045.70x = 124,381.24 × 38,578.87
  4. Step 4: Simplify right side
    83,045.70x = 4,798,487,688.40
  5. Step 5: Solve for x
    x = 4,798,487,688.40/83,045.70
  6. Step 6: Final answer
    x = 57,781.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.