Home / 80,772.32-121,158.51-36,347.18

Finding the Fourth Proportional to 80,772.32, 121,158.51 and 36,347.18

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Solution

The fourth proportional to 80,772.32, 121,158.51 and 36,347.18 is: 54,520.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,772.32 : 121,158.51 = 36,347.18 : x
  2. Step 2: Convert to fraction form
    80,772.32/121,158.51 = 36,347.18/x
  3. Step 3: Cross multiply
    80,772.32x = 121,158.51 × 36,347.18
  4. Step 4: Simplify right side
    80,772.32x = 4,403,770,171.50
  5. Step 5: Solve for x
    x = 4,403,770,171.50/80,772.32
  6. Step 6: Final answer
    x = 54,520.78

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1.5x scale

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.