Home / 80,436.24-120,497.40-52,650

Finding the Fourth Proportional to 80,436.24, 120,497.40 and 52,650

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Solution

The fourth proportional to 80,436.24, 120,497.40 and 52,650 is: 78,872.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,436.24 : 120,497.40 = 52,650 : x
  2. Step 2: Convert to fraction form
    80,436.24/120,497.40 = 52,650/x
  3. Step 3: Cross multiply
    80,436.24x = 120,497.40 × 52,650
  4. Step 4: Simplify right side
    80,436.24x = 6,344,188,110
  5. Step 5: Solve for x
    x = 6,344,188,110/80,436.24
  6. Step 6: Final answer
    x = 78,872.26

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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.