Home / 80,933.52-121,475.13-40,980.60

Finding the Fourth Proportional to 80,933.52, 121,475.13 and 40,980.60

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Solution

The fourth proportional to 80,933.52, 121,475.13 and 40,980.60 is: 61,508.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,933.52 : 121,475.13 = 40,980.60 : x
  2. Step 2: Convert to fraction form
    80,933.52/121,475.13 = 40,980.60/x
  3. Step 3: Cross multiply
    80,933.52x = 121,475.13 × 40,980.60
  4. Step 4: Simplify right side
    80,933.52x = 4,978,123,712.48
  5. Step 5: Solve for x
    x = 4,978,123,712.48/80,933.52
  6. Step 6: Final answer
    x = 61,508.80

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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.