Home / 71,672.16-107,508.48-30,119.04

Finding the Fourth Proportional to 71,672.16, 107,508.48 and 30,119.04

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Solution

The fourth proportional to 71,672.16, 107,508.48 and 30,119.04 is: 45,178.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,672.16 : 107,508.48 = 30,119.04 : x
  2. Step 2: Convert to fraction form
    71,672.16/107,508.48 = 30,119.04/x
  3. Step 3: Cross multiply
    71,672.16x = 107,508.48 × 30,119.04
  4. Step 4: Simplify right side
    71,672.16x = 3,238,052,209.46
  5. Step 5: Solve for x
    x = 3,238,052,209.46/71,672.16
  6. Step 6: Final answer
    x = 45,178.66

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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.