Home / 87,863.55-121,260.65-63,354.52

Finding the Fourth Proportional to 87,863.55, 121,260.65 and 63,354.52

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Solution

The fourth proportional to 87,863.55, 121,260.65 and 63,354.52 is: 87,435.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,863.55 : 121,260.65 = 63,354.52 : x
  2. Step 2: Convert to fraction form
    87,863.55/121,260.65 = 63,354.52/x
  3. Step 3: Cross multiply
    87,863.55x = 121,260.65 × 63,354.52
  4. Step 4: Simplify right side
    87,863.55x = 7,682,409,655.71
  5. Step 5: Solve for x
    x = 7,682,409,655.71/87,863.55
  6. Step 6: Final answer
    x = 87,435.69

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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.