Home / 87,868.36-131,775.28-31,701.17

Finding the Fourth Proportional to 87,868.36, 131,775.28 and 31,701.17

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Solution

The fourth proportional to 87,868.36, 131,775.28 and 31,701.17 is: 47,541.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,868.36 : 131,775.28 = 31,701.17 : x
  2. Step 2: Convert to fraction form
    87,868.36/131,775.28 = 31,701.17/x
  3. Step 3: Cross multiply
    87,868.36x = 131,775.28 × 31,701.17
  4. Step 4: Simplify right side
    87,868.36x = 4,177,429,894.20
  5. Step 5: Solve for x
    x = 4,177,429,894.20/87,868.36
  6. Step 6: Final answer
    x = 47,541.91

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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.