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Finding the Fourth Proportional to 69,148.80, 103,723.20 and 22,406.40

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Solution

The fourth proportional to 69,148.80, 103,723.20 and 22,406.40 is: 33,609.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,148.80 : 103,723.20 = 22,406.40 : x
  2. Step 2: Convert to fraction form
    69,148.80/103,723.20 = 22,406.40/x
  3. Step 3: Cross multiply
    69,148.80x = 103,723.20 × 22,406.40
  4. Step 4: Simplify right side
    69,148.80x = 2,324,063,508.48
  5. Step 5: Solve for x
    x = 2,324,063,508.48/69,148.80
  6. Step 6: Final answer
    x = 33,609.60

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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.