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Finding the Fourth Proportional to 69,445.35, 95,834.12 and 39,240.45

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Solution

The fourth proportional to 69,445.35, 95,834.12 and 39,240.45 is: 54,151.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,445.35 : 95,834.12 = 39,240.45 : x
  2. Step 2: Convert to fraction form
    69,445.35/95,834.12 = 39,240.45/x
  3. Step 3: Cross multiply
    69,445.35x = 95,834.12 × 39,240.45
  4. Step 4: Simplify right side
    69,445.35x = 3,760,573,797.95
  5. Step 5: Solve for x
    x = 3,760,573,797.95/69,445.35
  6. Step 6: Final answer
    x = 54,151.56

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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.