Home / 81,278.03-121,895.48-22,099.94

Finding the Fourth Proportional to 81,278.03, 121,895.48 and 22,099.94

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Solution

The fourth proportional to 81,278.03, 121,895.48 and 22,099.94 is: 33,144.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,278.03 : 121,895.48 = 22,099.94 : x
  2. Step 2: Convert to fraction form
    81,278.03/121,895.48 = 22,099.94/x
  3. Step 3: Cross multiply
    81,278.03x = 121,895.48 × 22,099.94
  4. Step 4: Simplify right side
    81,278.03x = 2,693,882,697.15
  5. Step 5: Solve for x
    x = 2,693,882,697.15/81,278.03
  6. Step 6: Final answer
    x = 33,144.04

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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.