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Finding the Fourth Proportional to 86,850, 119,853.04 and 49,123.44

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Solution

The fourth proportional to 86,850, 119,853.04 and 49,123.44 is: 67,790.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,850 : 119,853.04 = 49,123.44 : x
  2. Step 2: Convert to fraction form
    86,850/119,853.04 = 49,123.44/x
  3. Step 3: Cross multiply
    86,850x = 119,853.04 × 49,123.44
  4. Step 4: Simplify right side
    86,850x = 5,887,593,619.26
  5. Step 5: Solve for x
    x = 5,887,593,619.26/86,850
  6. Step 6: Final answer
    x = 67,790.37

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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.