Home / 80,904.15-121,269.83-30,964.95

Finding the Fourth Proportional to 80,904.15, 121,269.83 and 30,964.95

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Solution

The fourth proportional to 80,904.15, 121,269.83 and 30,964.95 is: 46,414.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,904.15 : 121,269.83 = 30,964.95 : x
  2. Step 2: Convert to fraction form
    80,904.15/121,269.83 = 30,964.95/x
  3. Step 3: Cross multiply
    80,904.15x = 121,269.83 × 30,964.95
  4. Step 4: Simplify right side
    80,904.15x = 3,755,114,067.63
  5. Step 5: Solve for x
    x = 3,755,114,067.63/80,904.15
  6. Step 6: Final answer
    x = 46,414.36

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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.