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Finding the Fourth Proportional to 64,175.34, 88,565.31 and 38,689.82

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Solution

The fourth proportional to 64,175.34, 88,565.31 and 38,689.82 is: 53,393.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,175.34 : 88,565.31 = 38,689.82 : x
  2. Step 2: Convert to fraction form
    64,175.34/88,565.31 = 38,689.82/x
  3. Step 3: Cross multiply
    64,175.34x = 88,565.31 × 38,689.82
  4. Step 4: Simplify right side
    64,175.34x = 3,426,575,902.14
  5. Step 5: Solve for x
    x = 3,426,575,902.14/64,175.34
  6. Step 6: Final answer
    x = 53,393.97

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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.