Home / 80,779.11-121,197.83-41,354.79

Finding the Fourth Proportional to 80,779.11, 121,197.83 and 41,354.79

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Solution

The fourth proportional to 80,779.11, 121,197.83 and 41,354.79 is: 62,047.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,779.11 : 121,197.83 = 41,354.79 : x
  2. Step 2: Convert to fraction form
    80,779.11/121,197.83 = 41,354.79/x
  3. Step 3: Cross multiply
    80,779.11x = 121,197.83 × 41,354.79
  4. Step 4: Simplify right side
    80,779.11x = 5,012,110,601.33
  5. Step 5: Solve for x
    x = 5,012,110,601.33/80,779.11
  6. Step 6: Final answer
    x = 62,047.11

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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.