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Finding the Fourth Proportional to 64,160.40, 96,175.80 and 29,125.20

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Solution

The fourth proportional to 64,160.40, 96,175.80 and 29,125.20 is: 43,658.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,160.40 : 96,175.80 = 29,125.20 : x
  2. Step 2: Convert to fraction form
    64,160.40/96,175.80 = 29,125.20/x
  3. Step 3: Cross multiply
    64,160.40x = 96,175.80 × 29,125.20
  4. Step 4: Simplify right side
    64,160.40x = 2,801,139,410.16
  5. Step 5: Solve for x
    x = 2,801,139,410.16/64,160.40
  6. Step 6: Final answer
    x = 43,658.38

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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.