Home / 82,284.11-123,426.16-19,954.61

Finding the Fourth Proportional to 82,284.11, 123,426.16 and 19,954.61

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Solution

The fourth proportional to 82,284.11, 123,426.16 and 19,954.61 is: 29,931.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,284.11 : 123,426.16 = 19,954.61 : x
  2. Step 2: Convert to fraction form
    82,284.11/123,426.16 = 19,954.61/x
  3. Step 3: Cross multiply
    82,284.11x = 123,426.16 × 19,954.61
  4. Step 4: Simplify right side
    82,284.11x = 2,462,920,886.60
  5. Step 5: Solve for x
    x = 2,462,920,886.60/82,284.11
  6. Step 6: Final answer
    x = 29,931.91

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Similar ratio
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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.