Home / 87,868.29-121,237.23-49,628.61

Finding the Fourth Proportional to 87,868.29, 121,237.23 and 49,628.61

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Solution

The fourth proportional to 87,868.29, 121,237.23 and 49,628.61 is: 68,475.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,868.29 : 121,237.23 = 49,628.61 : x
  2. Step 2: Convert to fraction form
    87,868.29/121,237.23 = 49,628.61/x
  3. Step 3: Cross multiply
    87,868.29x = 121,237.23 × 49,628.61
  4. Step 4: Simplify right side
    87,868.29x = 6,016,835,205.15
  5. Step 5: Solve for x
    x = 6,016,835,205.15/87,868.29
  6. Step 6: Final answer
    x = 68,475.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.