Home / 80,062.74-120,169.35-40,648.14

Finding the Fourth Proportional to 80,062.74, 120,169.35 and 40,648.14

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Solution

The fourth proportional to 80,062.74, 120,169.35 and 40,648.14 is: 61,010.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,062.74 : 120,169.35 = 40,648.14 : x
  2. Step 2: Convert to fraction form
    80,062.74/120,169.35 = 40,648.14/x
  3. Step 3: Cross multiply
    80,062.74x = 120,169.35 × 40,648.14
  4. Step 4: Simplify right side
    80,062.74x = 4,884,660,562.51
  5. Step 5: Solve for x
    x = 4,884,660,562.51/80,062.74
  6. Step 6: Final answer
    x = 61,010.41

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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.