Home / 80,891.34-121,258.64-30,932.97

Finding the Fourth Proportional to 80,891.34, 121,258.64 and 30,932.97

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Solution

The fourth proportional to 80,891.34, 121,258.64 and 30,932.97 is: 46,369.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,891.34 : 121,258.64 = 30,932.97 : x
  2. Step 2: Convert to fraction form
    80,891.34/121,258.64 = 30,932.97/x
  3. Step 3: Cross multiply
    80,891.34x = 121,258.64 × 30,932.97
  4. Step 4: Simplify right side
    80,891.34x = 3,750,889,718.70
  5. Step 5: Solve for x
    x = 3,750,889,718.70/80,891.34
  6. Step 6: Final answer
    x = 46,369.48

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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.