Home / 80,943.76-121,341.68-28,324.54

Finding the Fourth Proportional to 80,943.76, 121,341.68 and 28,324.54

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Solution

The fourth proportional to 80,943.76, 121,341.68 and 28,324.54 is: 42,460.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,943.76 : 121,341.68 = 28,324.54 : x
  2. Step 2: Convert to fraction form
    80,943.76/121,341.68 = 28,324.54/x
  3. Step 3: Cross multiply
    80,943.76x = 121,341.68 × 28,324.54
  4. Step 4: Simplify right side
    80,943.76x = 3,436,947,268.83
  5. Step 5: Solve for x
    x = 3,436,947,268.83/80,943.76
  6. Step 6: Final answer
    x = 42,460.93

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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.