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Finding the Fourth Proportional to 84,164.60, 126,246.74 and 49,079.65

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Solution

The fourth proportional to 84,164.60, 126,246.74 and 49,079.65 is: 73,619.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,164.60 : 126,246.74 = 49,079.65 : x
  2. Step 2: Convert to fraction form
    84,164.60/126,246.74 = 49,079.65/x
  3. Step 3: Cross multiply
    84,164.60x = 126,246.74 × 49,079.65
  4. Step 4: Simplify right side
    84,164.60x = 6,196,145,181.61
  5. Step 5: Solve for x
    x = 6,196,145,181.61/84,164.60
  6. Step 6: Final answer
    x = 73,619.38

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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.