Home / 54,240.64-81,366.31-18,697.28

Finding the Fourth Proportional to 54,240.64, 81,366.31 and 18,697.28

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Solution

The fourth proportional to 54,240.64, 81,366.31 and 18,697.28 is: 28,047.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,240.64 : 81,366.31 = 18,697.28 : x
  2. Step 2: Convert to fraction form
    54,240.64/81,366.31 = 18,697.28/x
  3. Step 3: Cross multiply
    54,240.64x = 81,366.31 × 18,697.28
  4. Step 4: Simplify right side
    54,240.64x = 1,521,328,283.20
  5. Step 5: Solve for x
    x = 1,521,328,283.20/54,240.64
  6. Step 6: Final answer
    x = 28,047.76

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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.