Home / 80,930.83-121,419.93-41,515.42

Finding the Fourth Proportional to 80,930.83, 121,419.93 and 41,515.42

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Solution

The fourth proportional to 80,930.83, 121,419.93 and 41,515.42 is: 62,285.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,930.83 : 121,419.93 = 41,515.42 : x
  2. Step 2: Convert to fraction form
    80,930.83/121,419.93 = 41,515.42/x
  3. Step 3: Cross multiply
    80,930.83x = 121,419.93 × 41,515.42
  4. Step 4: Simplify right side
    80,930.83x = 5,040,799,390.32
  5. Step 5: Solve for x
    x = 5,040,799,390.32/80,930.83
  6. Step 6: Final answer
    x = 62,285.28

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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.