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Finding the Fourth Proportional to 69,430.97, 95,815.04 and 39,216.65

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Solution

The fourth proportional to 69,430.97, 95,815.04 and 39,216.65 is: 54,119.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,430.97 : 95,815.04 = 39,216.65 : x
  2. Step 2: Convert to fraction form
    69,430.97/95,815.04 = 39,216.65/x
  3. Step 3: Cross multiply
    69,430.97x = 95,815.04 × 39,216.65
  4. Step 4: Simplify right side
    69,430.97x = 3,757,544,213.26
  5. Step 5: Solve for x
    x = 3,757,544,213.26/69,430.97
  6. Step 6: Final answer
    x = 54,119.14

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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.