Home / 80,541.24-120,830.76-24,381.78

Finding the Fourth Proportional to 80,541.24, 120,830.76 and 24,381.78

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Solution

The fourth proportional to 80,541.24, 120,830.76 and 24,381.78 is: 36,578.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,541.24 : 120,830.76 = 24,381.78 : x
  2. Step 2: Convert to fraction form
    80,541.24/120,830.76 = 24,381.78/x
  3. Step 3: Cross multiply
    80,541.24x = 120,830.76 × 24,381.78
  4. Step 4: Simplify right side
    80,541.24x = 2,946,069,007.55
  5. Step 5: Solve for x
    x = 2,946,069,007.55/80,541.24
  6. Step 6: Final answer
    x = 36,578.39

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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.