Home / 52,781.52-79,172.80-13,338.64

Finding the Fourth Proportional to 52,781.52, 79,172.80 and 13,338.64

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Solution

The fourth proportional to 52,781.52, 79,172.80 and 13,338.64 is: 20,008.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,781.52 : 79,172.80 = 13,338.64 : x
  2. Step 2: Convert to fraction form
    52,781.52/79,172.80 = 13,338.64/x
  3. Step 3: Cross multiply
    52,781.52x = 79,172.80 × 13,338.64
  4. Step 4: Simplify right side
    52,781.52x = 1,056,057,542.61
  5. Step 5: Solve for x
    x = 1,056,057,542.61/52,781.52
  6. Step 6: Final answer
    x = 20,008.09

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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.