Home / 80,277.60-120,490.44-40,863.12

Finding the Fourth Proportional to 80,277.60, 120,490.44 and 40,863.12

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Solution

The fourth proportional to 80,277.60, 120,490.44 and 40,863.12 is: 61,332.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,277.60 : 120,490.44 = 40,863.12 : x
  2. Step 2: Convert to fraction form
    80,277.60/120,490.44 = 40,863.12/x
  3. Step 3: Cross multiply
    80,277.60x = 120,490.44 × 40,863.12
  4. Step 4: Simplify right side
    80,277.60x = 4,923,615,308.57
  5. Step 5: Solve for x
    x = 4,923,615,308.57/80,277.60
  6. Step 6: Final answer
    x = 61,332.37

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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.