Home / 80,212.61-120,437.19-44,743.23

Finding the Fourth Proportional to 80,212.61, 120,437.19 and 44,743.23

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Solution

The fourth proportional to 80,212.61, 120,437.19 and 44,743.23 is: 67,180.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,212.61 : 120,437.19 = 44,743.23 : x
  2. Step 2: Convert to fraction form
    80,212.61/120,437.19 = 44,743.23/x
  3. Step 3: Cross multiply
    80,212.61x = 120,437.19 × 44,743.23
  4. Step 4: Simplify right side
    80,212.61x = 5,388,748,892.72
  5. Step 5: Solve for x
    x = 5,388,748,892.72/80,212.61
  6. Step 6: Final answer
    x = 67,180.82

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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.