Home / 54,356.73-81,561.17-28,061.47

Finding the Fourth Proportional to 54,356.73, 81,561.17 and 28,061.47

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Solution

The fourth proportional to 54,356.73, 81,561.17 and 28,061.47 is: 42,105.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,356.73 : 81,561.17 = 28,061.47 : x
  2. Step 2: Convert to fraction form
    54,356.73/81,561.17 = 28,061.47/x
  3. Step 3: Cross multiply
    54,356.73x = 81,561.17 × 28,061.47
  4. Step 4: Simplify right side
    54,356.73x = 2,288,726,325.12
  5. Step 5: Solve for x
    x = 2,288,726,325.12/54,356.73
  6. Step 6: Final answer
    x = 42,105.67

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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.