Home / 71,318.30-107,031.40-48,775.11

Finding the Fourth Proportional to 71,318.30, 107,031.40 and 48,775.11

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Solution

The fourth proportional to 71,318.30, 107,031.40 and 48,775.11 is: 73,199.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,318.30 : 107,031.40 = 48,775.11 : x
  2. Step 2: Convert to fraction form
    71,318.30/107,031.40 = 48,775.11/x
  3. Step 3: Cross multiply
    71,318.30x = 107,031.40 × 48,775.11
  4. Step 4: Simplify right side
    71,318.30x = 5,220,468,524.38
  5. Step 5: Solve for x
    x = 5,220,468,524.38/71,318.30
  6. Step 6: Final answer
    x = 73,199.57

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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.