Home / 80,362.32-120,537.18-30,437.88

Finding the Fourth Proportional to 80,362.32, 120,537.18 and 30,437.88

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Solution

The fourth proportional to 80,362.32, 120,537.18 and 30,437.88 is: 45,654.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,362.32 : 120,537.18 = 30,437.88 : x
  2. Step 2: Convert to fraction form
    80,362.32/120,537.18 = 30,437.88/x
  3. Step 3: Cross multiply
    80,362.32x = 120,537.18 × 30,437.88
  4. Step 4: Simplify right side
    80,362.32x = 3,668,896,220.38
  5. Step 5: Solve for x
    x = 3,668,896,220.38/80,362.32
  6. Step 6: Final answer
    x = 45,654.43

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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.