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Finding the Fourth Proportional to 64,781.58, 96,952.89 and 39,837.42

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Solution

The fourth proportional to 64,781.58, 96,952.89 and 39,837.42 is: 59,621.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,781.58 : 96,952.89 = 39,837.42 : x
  2. Step 2: Convert to fraction form
    64,781.58/96,952.89 = 39,837.42/x
  3. Step 3: Cross multiply
    64,781.58x = 96,952.89 × 39,837.42
  4. Step 4: Simplify right side
    64,781.58x = 3,862,352,999.14
  5. Step 5: Solve for x
    x = 3,862,352,999.14/64,781.58
  6. Step 6: Final answer
    x = 59,621.16

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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.