Home / 80,763.90-121,145.85-49,616.70

Finding the Fourth Proportional to 80,763.90, 121,145.85 and 49,616.70

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Solution

The fourth proportional to 80,763.90, 121,145.85 and 49,616.70 is: 74,425.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,763.90 : 121,145.85 = 49,616.70 : x
  2. Step 2: Convert to fraction form
    80,763.90/121,145.85 = 49,616.70/x
  3. Step 3: Cross multiply
    80,763.90x = 121,145.85 × 49,616.70
  4. Step 4: Simplify right side
    80,763.90x = 6,010,857,295.70
  5. Step 5: Solve for x
    x = 6,010,857,295.70/80,763.90
  6. Step 6: Final answer
    x = 74,425.05

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1.5x scale

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.