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Finding the Fourth Proportional to 69,969.65, 96,557.13 and 38,138.67

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Solution

The fourth proportional to 69,969.65, 96,557.13 and 38,138.67 is: 52,630.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,969.65 : 96,557.13 = 38,138.67 : x
  2. Step 2: Convert to fraction form
    69,969.65/96,557.13 = 38,138.67/x
  3. Step 3: Cross multiply
    69,969.65x = 96,557.13 × 38,138.67
  4. Step 4: Simplify right side
    69,969.65x = 3,682,560,517.22
  5. Step 5: Solve for x
    x = 3,682,560,517.22/69,969.65
  6. Step 6: Final answer
    x = 52,630.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.