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Finding the Fourth Proportional to 69,160.57, 103,703.73 and 21,766.80

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Solution

The fourth proportional to 69,160.57, 103,703.73 and 21,766.80 is: 32,638.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,160.57 : 103,703.73 = 21,766.80 : x
  2. Step 2: Convert to fraction form
    69,160.57/103,703.73 = 21,766.80/x
  3. Step 3: Cross multiply
    69,160.57x = 103,703.73 × 21,766.80
  4. Step 4: Simplify right side
    69,160.57x = 2,257,298,350.16
  5. Step 5: Solve for x
    x = 2,257,298,350.16/69,160.57
  6. Step 6: Final answer
    x = 32,638.52

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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.