Home / 54,881.30-82,312.38-15,429.03

Finding the Fourth Proportional to 54,881.30, 82,312.38 and 15,429.03

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Solution

The fourth proportional to 54,881.30, 82,312.38 and 15,429.03 is: 23,140.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,881.30 : 82,312.38 = 15,429.03 : x
  2. Step 2: Convert to fraction form
    54,881.30/82,312.38 = 15,429.03/x
  3. Step 3: Cross multiply
    54,881.30x = 82,312.38 × 15,429.03
  4. Step 4: Simplify right side
    54,881.30x = 1,270,000,103.25
  5. Step 5: Solve for x
    x = 1,270,000,103.25/54,881.30
  6. Step 6: Final answer
    x = 23,140.86

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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.