Home / 85,311.86-127,963.18-26,147.70

Finding the Fourth Proportional to 85,311.86, 127,963.18 and 26,147.70

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Solution

The fourth proportional to 85,311.86, 127,963.18 and 26,147.70 is: 39,220.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,311.86 : 127,963.18 = 26,147.70 : x
  2. Step 2: Convert to fraction form
    85,311.86/127,963.18 = 26,147.70/x
  3. Step 3: Cross multiply
    85,311.86x = 127,963.18 × 26,147.70
  4. Step 4: Simplify right side
    85,311.86x = 3,345,942,841.69
  5. Step 5: Solve for x
    x = 3,345,942,841.69/85,311.86
  6. Step 6: Final answer
    x = 39,220.14

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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.