Home / 87,966.77-121,394.30-47,680.38

Finding the Fourth Proportional to 87,966.77, 121,394.30 and 47,680.38

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Solution

The fourth proportional to 87,966.77, 121,394.30 and 47,680.38 is: 65,799.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,966.77 : 121,394.30 = 47,680.38 : x
  2. Step 2: Convert to fraction form
    87,966.77/121,394.30 = 47,680.38/x
  3. Step 3: Cross multiply
    87,966.77x = 121,394.30 × 47,680.38
  4. Step 4: Simplify right side
    87,966.77x = 5,788,126,115.43
  5. Step 5: Solve for x
    x = 5,788,126,115.43/87,966.77
  6. Step 6: Final answer
    x = 65,799.01

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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.