Home / 87,743.22-121,085.67-49,510.89

Finding the Fourth Proportional to 87,743.22, 121,085.67 and 49,510.89

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Solution

The fourth proportional to 87,743.22, 121,085.67 and 49,510.89 is: 68,325.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,743.22 : 121,085.67 = 49,510.89 : x
  2. Step 2: Convert to fraction form
    87,743.22/121,085.67 = 49,510.89/x
  3. Step 3: Cross multiply
    87,743.22x = 121,085.67 × 49,510.89
  4. Step 4: Simplify right side
    87,743.22x = 5,995,059,287.95
  5. Step 5: Solve for x
    x = 5,995,059,287.95/87,743.22
  6. Step 6: Final answer
    x = 68,325.04

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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.