Home / 69,189.32-95,486.78-38,972.75

Finding the Fourth Proportional to 69,189.32, 95,486.78 and 38,972.75

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Solution

The fourth proportional to 69,189.32, 95,486.78 and 38,972.75 is: 53,785.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,189.32 : 95,486.78 = 38,972.75 : x
  2. Step 2: Convert to fraction form
    69,189.32/95,486.78 = 38,972.75/x
  3. Step 3: Cross multiply
    69,189.32x = 95,486.78 × 38,972.75
  4. Step 4: Simplify right side
    69,189.32x = 3,721,382,025.24
  5. Step 5: Solve for x
    x = 3,721,382,025.24/69,189.32
  6. Step 6: Final answer
    x = 53,785.50

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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.