Home / 51,412.20-77,123.78-16,343.66

Finding the Fourth Proportional to 51,412.20, 77,123.78 and 16,343.66

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Solution

The fourth proportional to 51,412.20, 77,123.78 and 16,343.66 is: 24,517.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,412.20 : 77,123.78 = 16,343.66 : x
  2. Step 2: Convert to fraction form
    51,412.20/77,123.78 = 16,343.66/x
  3. Step 3: Cross multiply
    51,412.20x = 77,123.78 × 16,343.66
  4. Step 4: Simplify right side
    51,412.20x = 1,260,484,370.90
  5. Step 5: Solve for x
    x = 1,260,484,370.90/51,412.20
  6. Step 6: Final answer
    x = 24,517.22

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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.