Home / 95,438.72-143,121.60-31,381.90

Finding the Fourth Proportional to 95,438.72, 143,121.60 and 31,381.90

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Solution

The fourth proportional to 95,438.72, 143,121.60 and 31,381.90 is: 47,060.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,438.72 : 143,121.60 = 31,381.90 : x
  2. Step 2: Convert to fraction form
    95,438.72/143,121.60 = 31,381.90/x
  3. Step 3: Cross multiply
    95,438.72x = 143,121.60 × 31,381.90
  4. Step 4: Simplify right side
    95,438.72x = 4,491,427,381.24
  5. Step 5: Solve for x
    x = 4,491,427,381.24/95,438.72
  6. Step 6: Final answer
    x = 47,060.85

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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.