Home / 80,873.82-121,378.89-34,160.22

Finding the Fourth Proportional to 80,873.82, 121,378.89 and 34,160.22

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Solution

The fourth proportional to 80,873.82, 121,378.89 and 34,160.22 is: 51,269.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,873.82 : 121,378.89 = 34,160.22 : x
  2. Step 2: Convert to fraction form
    80,873.82/121,378.89 = 34,160.22/x
  3. Step 3: Cross multiply
    80,873.82x = 121,378.89 × 34,160.22
  4. Step 4: Simplify right side
    80,873.82x = 4,146,329,585.76
  5. Step 5: Solve for x
    x = 4,146,329,585.76/80,873.82
  6. Step 6: Final answer
    x = 51,269.12

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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.