Home / 55,139.13-82,703.76-17,689.03

Finding the Fourth Proportional to 55,139.13, 82,703.76 and 17,689.03

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Solution

The fourth proportional to 55,139.13, 82,703.76 and 17,689.03 is: 26,531.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,139.13 : 82,703.76 = 17,689.03 : x
  2. Step 2: Convert to fraction form
    55,139.13/82,703.76 = 17,689.03/x
  3. Step 3: Cross multiply
    55,139.13x = 82,703.76 × 17,689.03
  4. Step 4: Simplify right side
    55,139.13x = 1,462,949,291.75
  5. Step 5: Solve for x
    x = 1,462,949,291.75/55,139.13
  6. Step 6: Final answer
    x = 26,531.96

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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.