Home / 69,311.90-103,966.89-16,720.94

Finding the Fourth Proportional to 69,311.90, 103,966.89 and 16,720.94

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Solution

The fourth proportional to 69,311.90, 103,966.89 and 16,720.94 is: 25,081.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,311.90 : 103,966.89 = 16,720.94 : x
  2. Step 2: Convert to fraction form
    69,311.90/103,966.89 = 16,720.94/x
  3. Step 3: Cross multiply
    69,311.90x = 103,966.89 × 16,720.94
  4. Step 4: Simplify right side
    69,311.90x = 1,738,424,129.68
  5. Step 5: Solve for x
    x = 1,738,424,129.68/69,311.90
  6. Step 6: Final answer
    x = 25,081.18

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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.