Home / 80,725.02-121,086.18-36,320.34

Finding the Fourth Proportional to 80,725.02, 121,086.18 and 36,320.34

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Solution

The fourth proportional to 80,725.02, 121,086.18 and 36,320.34 is: 54,479.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,725.02 : 121,086.18 = 36,320.34 : x
  2. Step 2: Convert to fraction form
    80,725.02/121,086.18 = 36,320.34/x
  3. Step 3: Cross multiply
    80,725.02x = 121,086.18 × 36,320.34
  4. Step 4: Simplify right side
    80,725.02x = 4,397,891,226.90
  5. Step 5: Solve for x
    x = 4,397,891,226.90/80,725.02
  6. Step 6: Final answer
    x = 54,479.90

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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.