Home / 89,990.11-134,932.92-30,809.89

Finding the Fourth Proportional to 89,990.11, 134,932.92 and 30,809.89

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Solution

The fourth proportional to 89,990.11, 134,932.92 and 30,809.89 is: 46,196.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,990.11 : 134,932.92 = 30,809.89 : x
  2. Step 2: Convert to fraction form
    89,990.11/134,932.92 = 30,809.89/x
  3. Step 3: Cross multiply
    89,990.11x = 134,932.92 × 30,809.89
  4. Step 4: Simplify right side
    89,990.11x = 4,157,268,422.58
  5. Step 5: Solve for x
    x = 4,157,268,422.58/89,990.11
  6. Step 6: Final answer
    x = 46,196.95

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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.