Home / 54,140.31-81,219.23-16,691.63

Finding the Fourth Proportional to 54,140.31, 81,219.23 and 16,691.63

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Solution

The fourth proportional to 54,140.31, 81,219.23 and 16,691.63 is: 25,040.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,140.31 : 81,219.23 = 16,691.63 : x
  2. Step 2: Convert to fraction form
    54,140.31/81,219.23 = 16,691.63/x
  3. Step 3: Cross multiply
    54,140.31x = 81,219.23 × 16,691.63
  4. Step 4: Simplify right side
    54,140.31x = 1,355,680,846.49
  5. Step 5: Solve for x
    x = 1,355,680,846.49/54,140.31
  6. Step 6: Final answer
    x = 25,040.14

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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.