Home / 80,778.18-121,167.32-36,353.04

Finding the Fourth Proportional to 80,778.18, 121,167.32 and 36,353.04

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Solution

The fourth proportional to 80,778.18, 121,167.32 and 36,353.04 is: 54,529.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,778.18 : 121,167.32 = 36,353.04 : x
  2. Step 2: Convert to fraction form
    80,778.18/121,167.32 = 36,353.04/x
  3. Step 3: Cross multiply
    80,778.18x = 121,167.32 × 36,353.04
  4. Step 4: Simplify right side
    80,778.18x = 4,404,800,248.89
  5. Step 5: Solve for x
    x = 4,404,800,248.89/80,778.18
  6. Step 6: Final answer
    x = 54,529.58

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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.