Home / 52,781.76-79,173.18-13,338.90

Finding the Fourth Proportional to 52,781.76, 79,173.18 and 13,338.90

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Solution

The fourth proportional to 52,781.76, 79,173.18 and 13,338.90 is: 20,008.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,781.76 : 79,173.18 = 13,338.90 : x
  2. Step 2: Convert to fraction form
    52,781.76/79,173.18 = 13,338.90/x
  3. Step 3: Cross multiply
    52,781.76x = 79,173.18 × 13,338.90
  4. Step 4: Simplify right side
    52,781.76x = 1,056,083,130.70
  5. Step 5: Solve for x
    x = 1,056,083,130.70/52,781.76
  6. Step 6: Final answer
    x = 20,008.49

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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.