Home / 83,172.57-124,721.94-51,581.35

Finding the Fourth Proportional to 83,172.57, 124,721.94 and 51,581.35

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Solution

The fourth proportional to 83,172.57, 124,721.94 and 51,581.35 is: 77,349.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,172.57 : 124,721.94 = 51,581.35 : x
  2. Step 2: Convert to fraction form
    83,172.57/124,721.94 = 51,581.35/x
  3. Step 3: Cross multiply
    83,172.57x = 124,721.94 × 51,581.35
  4. Step 4: Simplify right side
    83,172.57x = 6,433,326,389.15
  5. Step 5: Solve for x
    x = 6,433,326,389.15/83,172.57
  6. Step 6: Final answer
    x = 77,349.14

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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.