Home / 81,237.78-121,863.96-22,073.76

Finding the Fourth Proportional to 81,237.78, 121,863.96 and 22,073.76

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Solution

The fourth proportional to 81,237.78, 121,863.96 and 22,073.76 is: 33,112.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,237.78 : 121,863.96 = 22,073.76 : x
  2. Step 2: Convert to fraction form
    81,237.78/121,863.96 = 22,073.76/x
  3. Step 3: Cross multiply
    81,237.78x = 121,863.96 × 22,073.76
  4. Step 4: Simplify right side
    81,237.78x = 2,689,995,805.69
  5. Step 5: Solve for x
    x = 2,689,995,805.69/81,237.78
  6. Step 6: Final answer
    x = 33,112.62

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1.5x scale

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.