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Finding the Fourth Proportional to 54,572.95, 81,873.05 and 19,034.78

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Solution

The fourth proportional to 54,572.95, 81,873.05 and 19,034.78 is: 28,556.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,572.95 : 81,873.05 = 19,034.78 : x
  2. Step 2: Convert to fraction form
    54,572.95/81,873.05 = 19,034.78/x
  3. Step 3: Cross multiply
    54,572.95x = 81,873.05 × 19,034.78
  4. Step 4: Simplify right side
    54,572.95x = 1,558,435,571.13
  5. Step 5: Solve for x
    x = 1,558,435,571.13/54,572.95
  6. Step 6: Final answer
    x = 28,556.92

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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.