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Finding the Fourth Proportional to 69,019.56, 95,249.72 and 40,357.71

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Solution

The fourth proportional to 69,019.56, 95,249.72 and 40,357.71 is: 55,695.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,019.56 : 95,249.72 = 40,357.71 : x
  2. Step 2: Convert to fraction form
    69,019.56/95,249.72 = 40,357.71/x
  3. Step 3: Cross multiply
    69,019.56x = 95,249.72 × 40,357.71
  4. Step 4: Simplify right side
    69,019.56x = 3,844,060,678.24
  5. Step 5: Solve for x
    x = 3,844,060,678.24/69,019.56
  6. Step 6: Final answer
    x = 55,695.24

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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.