Home / 81,309.01-121,874.53-41,868.49

Finding the Fourth Proportional to 81,309.01, 121,874.53 and 41,868.49

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Solution

The fourth proportional to 81,309.01, 121,874.53 and 41,868.49 is: 62,756.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,309.01 : 121,874.53 = 41,868.49 : x
  2. Step 2: Convert to fraction form
    81,309.01/121,874.53 = 41,868.49/x
  3. Step 3: Cross multiply
    81,309.01x = 121,874.53 × 41,868.49
  4. Step 4: Simplify right side
    81,309.01x = 5,102,702,540.56
  5. Step 5: Solve for x
    x = 5,102,702,540.56/81,309.01
  6. Step 6: Final answer
    x = 62,756.91

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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.