Home / 82,217.09-113,447.39-49,934.91

Finding the Fourth Proportional to 82,217.09, 113,447.39 and 49,934.91

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Solution

The fourth proportional to 82,217.09, 113,447.39 and 49,934.91 is: 68,902.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,217.09 : 113,447.39 = 49,934.91 : x
  2. Step 2: Convert to fraction form
    82,217.09/113,447.39 = 49,934.91/x
  3. Step 3: Cross multiply
    82,217.09x = 113,447.39 × 49,934.91
  4. Step 4: Simplify right side
    82,217.09x = 5,664,985,385.14
  5. Step 5: Solve for x
    x = 5,664,985,385.14/82,217.09
  6. Step 6: Final answer
    x = 68,902.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.