Home / 80,900.86-121,324.88-26,851.02

Finding the Fourth Proportional to 80,900.86, 121,324.88 and 26,851.02

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Solution

The fourth proportional to 80,900.86, 121,324.88 and 26,851.02 is: 40,267.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,900.86 : 121,324.88 = 26,851.02 : x
  2. Step 2: Convert to fraction form
    80,900.86/121,324.88 = 26,851.02/x
  3. Step 3: Cross multiply
    80,900.86x = 121,324.88 × 26,851.02
  4. Step 4: Simplify right side
    80,900.86x = 3,257,696,779.38
  5. Step 5: Solve for x
    x = 3,257,696,779.38/80,900.86
  6. Step 6: Final answer
    x = 40,267.76

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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.