Home / 87,852.09-121,235.72-47,565.85

Finding the Fourth Proportional to 87,852.09, 121,235.72 and 47,565.85

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Solution

The fourth proportional to 87,852.09, 121,235.72 and 47,565.85 is: 65,640.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,852.09 : 121,235.72 = 47,565.85 : x
  2. Step 2: Convert to fraction form
    87,852.09/121,235.72 = 47,565.85/x
  3. Step 3: Cross multiply
    87,852.09x = 121,235.72 × 47,565.85
  4. Step 4: Simplify right side
    87,852.09x = 5,766,680,072.16
  5. Step 5: Solve for x
    x = 5,766,680,072.16/87,852.09
  6. Step 6: Final answer
    x = 65,640.78

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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.