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Finding the Fourth Proportional to 54,031.38, 74,564.34 and 31,372.23

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Solution

The fourth proportional to 54,031.38, 74,564.34 and 31,372.23 is: 43,294.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,031.38 : 74,564.34 = 31,372.23 : x
  2. Step 2: Convert to fraction form
    54,031.38/74,564.34 = 31,372.23/x
  3. Step 3: Cross multiply
    54,031.38x = 74,564.34 × 31,372.23
  4. Step 4: Simplify right side
    54,031.38x = 2,339,249,624.28
  5. Step 5: Solve for x
    x = 2,339,249,624.28/54,031.38
  6. Step 6: Final answer
    x = 43,294.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.