Home / 87,641.46-121,003.61-51,842.97

Finding the Fourth Proportional to 87,641.46, 121,003.61 and 51,842.97

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Solution

The fourth proportional to 87,641.46, 121,003.61 and 51,842.97 is: 71,577.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,641.46 : 121,003.61 = 51,842.97 : x
  2. Step 2: Convert to fraction form
    87,641.46/121,003.61 = 51,842.97/x
  3. Step 3: Cross multiply
    87,641.46x = 121,003.61 × 51,842.97
  4. Step 4: Simplify right side
    87,641.46x = 6,273,186,263.91
  5. Step 5: Solve for x
    x = 6,273,186,263.91/87,641.46
  6. Step 6: Final answer
    x = 71,577.84

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1.5x scale

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.