Home / 52,508.55-78,731.10-20,923.47

Finding the Fourth Proportional to 52,508.55, 78,731.10 and 20,923.47

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Solution

The fourth proportional to 52,508.55, 78,731.10 and 20,923.47 is: 31,372.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,508.55 : 78,731.10 = 20,923.47 : x
  2. Step 2: Convert to fraction form
    52,508.55/78,731.10 = 20,923.47/x
  3. Step 3: Cross multiply
    52,508.55x = 78,731.10 × 20,923.47
  4. Step 4: Simplify right side
    52,508.55x = 1,647,327,808.92
  5. Step 5: Solve for x
    x = 1,647,327,808.92/52,508.55
  6. Step 6: Final answer
    x = 31,372.56

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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.