Home / 66,397.38-99,615.57-19,651.47

Finding the Fourth Proportional to 66,397.38, 99,615.57 and 19,651.47

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Solution

The fourth proportional to 66,397.38, 99,615.57 and 19,651.47 is: 29,482.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,397.38 : 99,615.57 = 19,651.47 : x
  2. Step 2: Convert to fraction form
    66,397.38/99,615.57 = 19,651.47/x
  3. Step 3: Cross multiply
    66,397.38x = 99,615.57 × 19,651.47
  4. Step 4: Simplify right side
    66,397.38x = 1,957,592,385.39
  5. Step 5: Solve for x
    x = 1,957,592,385.39/66,397.38
  6. Step 6: Final answer
    x = 29,482.98

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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.