Home / 80,917.71-121,391.15-24,756.77

Finding the Fourth Proportional to 80,917.71, 121,391.15 and 24,756.77

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Solution

The fourth proportional to 80,917.71, 121,391.15 and 24,756.77 is: 37,139.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,917.71 : 121,391.15 = 24,756.77 : x
  2. Step 2: Convert to fraction form
    80,917.71/121,391.15 = 24,756.77/x
  3. Step 3: Cross multiply
    80,917.71x = 121,391.15 × 24,756.77
  4. Step 4: Simplify right side
    80,917.71x = 3,005,252,780.59
  5. Step 5: Solve for x
    x = 3,005,252,780.59/80,917.71
  6. Step 6: Final answer
    x = 37,139.62

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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.