Home / 51,385.20-77,082.92-13,945.88

Finding the Fourth Proportional to 51,385.20, 77,082.92 and 13,945.88

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Solution

The fourth proportional to 51,385.20, 77,082.92 and 13,945.88 is: 20,920.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,385.20 : 77,082.92 = 13,945.88 : x
  2. Step 2: Convert to fraction form
    51,385.20/77,082.92 = 13,945.88/x
  3. Step 3: Cross multiply
    51,385.20x = 77,082.92 × 13,945.88
  4. Step 4: Simplify right side
    51,385.20x = 1,074,989,152.37
  5. Step 5: Solve for x
    x = 1,074,989,152.37/51,385.20
  6. Step 6: Final answer
    x = 20,920.21

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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.