Home / 87,695.22-120,854.07-63,455.16

Finding the Fourth Proportional to 87,695.22, 120,854.07 and 63,455.16

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Solution

The fourth proportional to 87,695.22, 120,854.07 and 63,455.16 is: 87,448.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,695.22 : 120,854.07 = 63,455.16 : x
  2. Step 2: Convert to fraction form
    87,695.22/120,854.07 = 63,455.16/x
  3. Step 3: Cross multiply
    87,695.22x = 120,854.07 × 63,455.16
  4. Step 4: Simplify right side
    87,695.22x = 7,668,814,348.50
  5. Step 5: Solve for x
    x = 7,668,814,348.50/87,695.22
  6. Step 6: Final answer
    x = 87,448.49

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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.