Home / 87,283.22-120,449.75-49,555.04

Finding the Fourth Proportional to 87,283.22, 120,449.75 and 49,555.04

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Solution

The fourth proportional to 87,283.22, 120,449.75 and 49,555.04 is: 68,385.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,283.22 : 120,449.75 = 49,555.04 : x
  2. Step 2: Convert to fraction form
    87,283.22/120,449.75 = 49,555.04/x
  3. Step 3: Cross multiply
    87,283.22x = 120,449.75 × 49,555.04
  4. Step 4: Simplify right side
    87,283.22x = 5,968,891,329.22
  5. Step 5: Solve for x
    x = 5,968,891,329.22/87,283.22
  6. Step 6: Final answer
    x = 68,385.33

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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.