Home / 52,519.24-78,731.70-20,951.20

Finding the Fourth Proportional to 52,519.24, 78,731.70 and 20,951.20

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Solution

The fourth proportional to 52,519.24, 78,731.70 and 20,951.20 is: 31,407.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,519.24 : 78,731.70 = 20,951.20 : x
  2. Step 2: Convert to fraction form
    52,519.24/78,731.70 = 20,951.20/x
  3. Step 3: Cross multiply
    52,519.24x = 78,731.70 × 20,951.20
  4. Step 4: Simplify right side
    52,519.24x = 1,649,523,593.04
  5. Step 5: Solve for x
    x = 1,649,523,593.04/52,519.24
  6. Step 6: Final answer
    x = 31,407.99

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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.