Home / 80,877.20-121,319.40-27,568.40

Finding the Fourth Proportional to 80,877.20, 121,319.40 and 27,568.40

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Solution

The fourth proportional to 80,877.20, 121,319.40 and 27,568.40 is: 41,353.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,877.20 : 121,319.40 = 27,568.40 : x
  2. Step 2: Convert to fraction form
    80,877.20/121,319.40 = 27,568.40/x
  3. Step 3: Cross multiply
    80,877.20x = 121,319.40 × 27,568.40
  4. Step 4: Simplify right side
    80,877.20x = 3,344,581,746.96
  5. Step 5: Solve for x
    x = 3,344,581,746.96/80,877.20
  6. Step 6: Final answer
    x = 41,353.83

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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.