Home / 87,863.17-121,260.13-63,354.14

Finding the Fourth Proportional to 87,863.17, 121,260.13 and 63,354.14

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Solution

The fourth proportional to 87,863.17, 121,260.13 and 63,354.14 is: 87,435.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,863.17 : 121,260.13 = 63,354.14 : x
  2. Step 2: Convert to fraction form
    87,863.17/121,260.13 = 63,354.14/x
  3. Step 3: Cross multiply
    87,863.17x = 121,260.13 × 63,354.14
  4. Step 4: Simplify right side
    87,863.17x = 7,682,331,397.20
  5. Step 5: Solve for x
    x = 7,682,331,397.20/87,863.17
  6. Step 6: Final answer
    x = 87,435.17

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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.