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Finding the Fourth Proportional to 69,630.80, 104,446.20 and 34,638.80

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Solution

The fourth proportional to 69,630.80, 104,446.20 and 34,638.80 is: 51,958.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,630.80 : 104,446.20 = 34,638.80 : x
  2. Step 2: Convert to fraction form
    69,630.80/104,446.20 = 34,638.80/x
  3. Step 3: Cross multiply
    69,630.80x = 104,446.20 × 34,638.80
  4. Step 4: Simplify right side
    69,630.80x = 3,617,891,032.56
  5. Step 5: Solve for x
    x = 3,617,891,032.56/69,630.80
  6. Step 6: Final answer
    x = 51,958.20

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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.