Home / 54,442.13-81,663.39-19,381.68

Finding the Fourth Proportional to 54,442.13, 81,663.39 and 19,381.68

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Solution

The fourth proportional to 54,442.13, 81,663.39 and 19,381.68 is: 29,072.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,442.13 : 81,663.39 = 19,381.68 : x
  2. Step 2: Convert to fraction form
    54,442.13/81,663.39 = 19,381.68/x
  3. Step 3: Cross multiply
    54,442.13x = 81,663.39 × 19,381.68
  4. Step 4: Simplify right side
    54,442.13x = 1,582,773,692.70
  5. Step 5: Solve for x
    x = 1,582,773,692.70/54,442.13
  6. Step 6: Final answer
    x = 29,072.59

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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.