Home / 69,126.67-103,689.33-31,676.12

Finding the Fourth Proportional to 69,126.67, 103,689.33 and 31,676.12

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Solution

The fourth proportional to 69,126.67, 103,689.33 and 31,676.12 is: 47,513.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,126.67 : 103,689.33 = 31,676.12 : x
  2. Step 2: Convert to fraction form
    69,126.67/103,689.33 = 31,676.12/x
  3. Step 3: Cross multiply
    69,126.67x = 103,689.33 × 31,676.12
  4. Step 4: Simplify right side
    69,126.67x = 3,284,475,659.80
  5. Step 5: Solve for x
    x = 3,284,475,659.80/69,126.67
  6. Step 6: Final answer
    x = 47,513.87

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1.5x scale

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.