Home / 81,266.13-121,898.64-22,101.57

Finding the Fourth Proportional to 81,266.13, 121,898.64 and 22,101.57

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Solution

The fourth proportional to 81,266.13, 121,898.64 and 22,101.57 is: 33,152.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,266.13 : 121,898.64 = 22,101.57 : x
  2. Step 2: Convert to fraction form
    81,266.13/121,898.64 = 22,101.57/x
  3. Step 3: Cross multiply
    81,266.13x = 121,898.64 × 22,101.57
  4. Step 4: Simplify right side
    81,266.13x = 2,694,151,324.86
  5. Step 5: Solve for x
    x = 2,694,151,324.86/81,266.13
  6. Step 6: Final answer
    x = 33,152.20

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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.