Home / 83,669.52-115,463.70-50,135.52

Finding the Fourth Proportional to 83,669.52, 115,463.70 and 50,135.52

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Solution

The fourth proportional to 83,669.52, 115,463.70 and 50,135.52 is: 69,186.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,669.52 : 115,463.70 = 50,135.52 : x
  2. Step 2: Convert to fraction form
    83,669.52/115,463.70 = 50,135.52/x
  3. Step 3: Cross multiply
    83,669.52x = 115,463.70 × 50,135.52
  4. Step 4: Simplify right side
    83,669.52x = 5,788,832,640.62
  5. Step 5: Solve for x
    x = 5,788,832,640.62/83,669.52
  6. Step 6: Final answer
    x = 69,186.88

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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.