Home / 66,298.97-99,290.17-38,159.88

Finding the Fourth Proportional to 66,298.97, 99,290.17 and 38,159.88

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Solution

The fourth proportional to 66,298.97, 99,290.17 and 38,159.88 is: 57,148.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,298.97 : 99,290.17 = 38,159.88 : x
  2. Step 2: Convert to fraction form
    66,298.97/99,290.17 = 38,159.88/x
  3. Step 3: Cross multiply
    66,298.97x = 99,290.17 × 38,159.88
  4. Step 4: Simplify right side
    66,298.97x = 3,788,900,876.98
  5. Step 5: Solve for x
    x = 3,788,900,876.98/66,298.97
  6. Step 6: Final answer
    x = 57,148.71

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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.