Home / 69,121.32-95,387.61-38,907.09

Finding the Fourth Proportional to 69,121.32, 95,387.61 and 38,907.09

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Solution

The fourth proportional to 69,121.32, 95,387.61 and 38,907.09 is: 53,691.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,121.32 : 95,387.61 = 38,907.09 : x
  2. Step 2: Convert to fraction form
    69,121.32/95,387.61 = 38,907.09/x
  3. Step 3: Cross multiply
    69,121.32x = 95,387.61 × 38,907.09
  4. Step 4: Simplify right side
    69,121.32x = 3,711,254,327.15
  5. Step 5: Solve for x
    x = 3,711,254,327.15/69,121.32
  6. Step 6: Final answer
    x = 53,691.89

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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.