Home / 45,122.81-67,610.23-31,951.53

Finding the Fourth Proportional to 45,122.81, 67,610.23 and 31,951.53

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Solution

The fourth proportional to 45,122.81, 67,610.23 and 31,951.53 is: 47,874.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,122.81 : 67,610.23 = 31,951.53 : x
  2. Step 2: Convert to fraction form
    45,122.81/67,610.23 = 31,951.53/x
  3. Step 3: Cross multiply
    45,122.81x = 67,610.23 × 31,951.53
  4. Step 4: Simplify right side
    45,122.81x = 2,160,250,212.27
  5. Step 5: Solve for x
    x = 2,160,250,212.27/45,122.81
  6. Step 6: Final answer
    x = 47,874.91

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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.