Home / 80,764.88-121,152.18-25,360.88

Finding the Fourth Proportional to 80,764.88, 121,152.18 and 25,360.88

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Solution

The fourth proportional to 80,764.88, 121,152.18 and 25,360.88 is: 38,042.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,764.88 : 121,152.18 = 25,360.88 : x
  2. Step 2: Convert to fraction form
    80,764.88/121,152.18 = 25,360.88/x
  3. Step 3: Cross multiply
    80,764.88x = 121,152.18 × 25,360.88
  4. Step 4: Simplify right side
    80,764.88x = 3,072,525,898.72
  5. Step 5: Solve for x
    x = 3,072,525,898.72/80,764.88
  6. Step 6: Final answer
    x = 38,042.85

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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.