Home / 69,538.38-95,979.72-40,864.38

Finding the Fourth Proportional to 69,538.38, 95,979.72 and 40,864.38

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Solution

The fourth proportional to 69,538.38, 95,979.72 and 40,864.38 is: 56,402.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,538.38 : 95,979.72 = 40,864.38 : x
  2. Step 2: Convert to fraction form
    69,538.38/95,979.72 = 40,864.38/x
  3. Step 3: Cross multiply
    69,538.38x = 95,979.72 × 40,864.38
  4. Step 4: Simplify right side
    69,538.38x = 3,922,151,750.37
  5. Step 5: Solve for x
    x = 3,922,151,750.37/69,538.38
  6. Step 6: Final answer
    x = 56,402.69

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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.