Home / 80,841.38-121,300.56-36,481.74

Finding the Fourth Proportional to 80,841.38, 121,300.56 and 36,481.74

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Solution

The fourth proportional to 80,841.38, 121,300.56 and 36,481.74 is: 54,739.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,841.38 : 121,300.56 = 36,481.74 : x
  2. Step 2: Convert to fraction form
    80,841.38/121,300.56 = 36,481.74/x
  3. Step 3: Cross multiply
    80,841.38x = 121,300.56 × 36,481.74
  4. Step 4: Simplify right side
    80,841.38x = 4,425,255,491.77
  5. Step 5: Solve for x
    x = 4,425,255,491.77/80,841.38
  6. Step 6: Final answer
    x = 54,739.98

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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.