Home / 87,863.42-121,260.47-63,354.39

Finding the Fourth Proportional to 87,863.42, 121,260.47 and 63,354.39

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Solution

The fourth proportional to 87,863.42, 121,260.47 and 63,354.39 is: 87,435.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,863.42 : 121,260.47 = 63,354.39 : x
  2. Step 2: Convert to fraction form
    87,863.42/121,260.47 = 63,354.39/x
  3. Step 3: Cross multiply
    87,863.42x = 121,260.47 × 63,354.39
  4. Step 4: Simplify right side
    87,863.42x = 7,682,383,569.50
  5. Step 5: Solve for x
    x = 7,682,383,569.50/87,863.42
  6. Step 6: Final answer
    x = 87,435.51

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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.