Home / 81,310.01-121,876.03-41,869.49

Finding the Fourth Proportional to 81,310.01, 121,876.03 and 41,869.49

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Solution

The fourth proportional to 81,310.01, 121,876.03 and 41,869.49 is: 62,758.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,310.01 : 121,876.03 = 41,869.49 : x
  2. Step 2: Convert to fraction form
    81,310.01/121,876.03 = 41,869.49/x
  3. Step 3: Cross multiply
    81,310.01x = 121,876.03 × 41,869.49
  4. Step 4: Simplify right side
    81,310.01x = 5,102,887,219.32
  5. Step 5: Solve for x
    x = 5,102,887,219.32/81,310.01
  6. Step 6: Final answer
    x = 62,758.41

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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.