Home / 80,932.85-121,434.30-43,449.19

Finding the Fourth Proportional to 80,932.85, 121,434.30 and 43,449.19

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Solution

The fourth proportional to 80,932.85, 121,434.30 and 43,449.19 is: 65,192.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,932.85 : 121,434.30 = 43,449.19 : x
  2. Step 2: Convert to fraction form
    80,932.85/121,434.30 = 43,449.19/x
  3. Step 3: Cross multiply
    80,932.85x = 121,434.30 × 43,449.19
  4. Step 4: Simplify right side
    80,932.85x = 5,276,221,973.22
  5. Step 5: Solve for x
    x = 5,276,221,973.22/80,932.85
  6. Step 6: Final answer
    x = 65,192.59

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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.