Home / 66,034.24-99,035.80-39,387.68

Finding the Fourth Proportional to 66,034.24, 99,035.80 and 39,387.68

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Solution

The fourth proportional to 66,034.24, 99,035.80 and 39,387.68 is: 59,072.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,034.24 : 99,035.80 = 39,387.68 : x
  2. Step 2: Convert to fraction form
    66,034.24/99,035.80 = 39,387.68/x
  3. Step 3: Cross multiply
    66,034.24x = 99,035.80 × 39,387.68
  4. Step 4: Simplify right side
    66,034.24x = 3,900,790,398.94
  5. Step 5: Solve for x
    x = 3,900,790,398.94/66,034.24
  6. Step 6: Final answer
    x = 59,072.24

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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.