Home / 54,344.36-81,641.64-38,370.80

Finding the Fourth Proportional to 54,344.36, 81,641.64 and 38,370.80

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Solution

The fourth proportional to 54,344.36, 81,641.64 and 38,370.80 is: 57,644.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,344.36 : 81,641.64 = 38,370.80 : x
  2. Step 2: Convert to fraction form
    54,344.36/81,641.64 = 38,370.80/x
  3. Step 3: Cross multiply
    54,344.36x = 81,641.64 × 38,370.80
  4. Step 4: Simplify right side
    54,344.36x = 3,132,655,040.11
  5. Step 5: Solve for x
    x = 3,132,655,040.11/54,344.36
  6. Step 6: Final answer
    x = 57,644.53

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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.