Home / 54,345.82-81,542.16-29,403.40

Finding the Fourth Proportional to 54,345.82, 81,542.16 and 29,403.40

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Solution

The fourth proportional to 54,345.82, 81,542.16 and 29,403.40 is: 44,117.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,345.82 : 81,542.16 = 29,403.40 : x
  2. Step 2: Convert to fraction form
    54,345.82/81,542.16 = 29,403.40/x
  3. Step 3: Cross multiply
    54,345.82x = 81,542.16 × 29,403.40
  4. Step 4: Simplify right side
    54,345.82x = 2,397,616,747.34
  5. Step 5: Solve for x
    x = 2,397,616,747.34/54,345.82
  6. Step 6: Final answer
    x = 44,117.78

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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.