Home / 89,964.48-134,934.15-49,450.71

Finding the Fourth Proportional to 89,964.48, 134,934.15 and 49,450.71

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Solution

The fourth proportional to 89,964.48, 134,934.15 and 49,450.71 is: 74,169.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,964.48 : 134,934.15 = 49,450.71 : x
  2. Step 2: Convert to fraction form
    89,964.48/134,934.15 = 49,450.71/x
  3. Step 3: Cross multiply
    89,964.48x = 134,934.15 × 49,450.71
  4. Step 4: Simplify right side
    89,964.48x = 6,672,589,520.75
  5. Step 5: Solve for x
    x = 6,672,589,520.75/89,964.48
  6. Step 6: Final answer
    x = 74,169.16

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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.