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Finding the Fourth Proportional to 69,472.85, 104,123.77 and 39,512.23

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Solution

The fourth proportional to 69,472.85, 104,123.77 and 39,512.23 is: 59,219.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,472.85 : 104,123.77 = 39,512.23 : x
  2. Step 2: Convert to fraction form
    69,472.85/104,123.77 = 39,512.23/x
  3. Step 3: Cross multiply
    69,472.85x = 104,123.77 × 39,512.23
  4. Step 4: Simplify right side
    69,472.85x = 4,114,162,348.71
  5. Step 5: Solve for x
    x = 4,114,162,348.71/69,472.85
  6. Step 6: Final answer
    x = 59,219.71

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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.