Home / 69,311.40-103,966.14-16,720.44

Finding the Fourth Proportional to 69,311.40, 103,966.14 and 16,720.44

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Solution

The fourth proportional to 69,311.40, 103,966.14 and 16,720.44 is: 25,080.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,311.40 : 103,966.14 = 16,720.44 : x
  2. Step 2: Convert to fraction form
    69,311.40/103,966.14 = 16,720.44/x
  3. Step 3: Cross multiply
    69,311.40x = 103,966.14 × 16,720.44
  4. Step 4: Simplify right side
    69,311.40x = 1,738,359,605.90
  5. Step 5: Solve for x
    x = 1,738,359,605.90/69,311.40
  6. Step 6: Final answer
    x = 25,080.43

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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.