Home / 80,780.66-121,195.72-41,365.68

Finding the Fourth Proportional to 80,780.66, 121,195.72 and 41,365.68

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Solution

The fourth proportional to 80,780.66, 121,195.72 and 41,365.68 is: 62,061.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,780.66 : 121,195.72 = 41,365.68 : x
  2. Step 2: Convert to fraction form
    80,780.66/121,195.72 = 41,365.68/x
  3. Step 3: Cross multiply
    80,780.66x = 121,195.72 × 41,365.68
  4. Step 4: Simplify right side
    80,780.66x = 5,013,343,370.89
  5. Step 5: Solve for x
    x = 5,013,343,370.89/80,780.66
  6. Step 6: Final answer
    x = 62,061.18

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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.