Home / 83,780.02-125,643.38-27,609.66

Finding the Fourth Proportional to 83,780.02, 125,643.38 and 27,609.66

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Solution

The fourth proportional to 83,780.02, 125,643.38 and 27,609.66 is: 41,405.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,780.02 : 125,643.38 = 27,609.66 : x
  2. Step 2: Convert to fraction form
    83,780.02/125,643.38 = 27,609.66/x
  3. Step 3: Cross multiply
    83,780.02x = 125,643.38 × 27,609.66
  4. Step 4: Simplify right side
    83,780.02x = 3,468,970,942.65
  5. Step 5: Solve for x
    x = 3,468,970,942.65/83,780.02
  6. Step 6: Final answer
    x = 41,405.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.