Home / 54,406.62-81,560.68-19,338.07

Finding the Fourth Proportional to 54,406.62, 81,560.68 and 19,338.07

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Solution

The fourth proportional to 54,406.62, 81,560.68 and 19,338.07 is: 28,989.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,406.62 : 81,560.68 = 19,338.07 : x
  2. Step 2: Convert to fraction form
    54,406.62/81,560.68 = 19,338.07/x
  3. Step 3: Cross multiply
    54,406.62x = 81,560.68 × 19,338.07
  4. Step 4: Simplify right side
    54,406.62x = 1,577,226,139.09
  5. Step 5: Solve for x
    x = 1,577,226,139.09/54,406.62
  6. Step 6: Final answer
    x = 28,989.60

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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.