Home / 80,275.60-120,487.44-40,861.12

Finding the Fourth Proportional to 80,275.60, 120,487.44 and 40,861.12

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Solution

The fourth proportional to 80,275.60, 120,487.44 and 40,861.12 is: 61,329.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,275.60 : 120,487.44 = 40,861.12 : x
  2. Step 2: Convert to fraction form
    80,275.60/120,487.44 = 40,861.12/x
  3. Step 3: Cross multiply
    80,275.60x = 120,487.44 × 40,861.12
  4. Step 4: Simplify right side
    80,275.60x = 4,923,251,744.33
  5. Step 5: Solve for x
    x = 4,923,251,744.33/80,275.60
  6. Step 6: Final answer
    x = 61,329.37

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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.