Home / 54,475.94-81,724.20-18,935.90

Finding the Fourth Proportional to 54,475.94, 81,724.20 and 18,935.90

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Solution

The fourth proportional to 54,475.94, 81,724.20 and 18,935.90 is: 28,407.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,475.94 : 81,724.20 = 18,935.90 : x
  2. Step 2: Convert to fraction form
    54,475.94/81,724.20 = 18,935.90/x
  3. Step 3: Cross multiply
    54,475.94x = 81,724.20 × 18,935.90
  4. Step 4: Simplify right side
    54,475.94x = 1,547,521,278.78
  5. Step 5: Solve for x
    x = 1,547,521,278.78/54,475.94
  6. Step 6: Final answer
    x = 28,407.43

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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.