Home / 80,419.20-120,684.16-36,095.52

Finding the Fourth Proportional to 80,419.20, 120,684.16 and 36,095.52

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Solution

The fourth proportional to 80,419.20, 120,684.16 and 36,095.52 is: 54,168.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,419.20 : 120,684.16 = 36,095.52 : x
  2. Step 2: Convert to fraction form
    80,419.20/120,684.16 = 36,095.52/x
  3. Step 3: Cross multiply
    80,419.20x = 120,684.16 × 36,095.52
  4. Step 4: Simplify right side
    80,419.20x = 4,356,157,510.96
  5. Step 5: Solve for x
    x = 4,356,157,510.96/80,419.20
  6. Step 6: Final answer
    x = 54,168.13

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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.