Home / 69,979.40-96,574.19-39,769.83

Finding the Fourth Proportional to 69,979.40, 96,574.19 and 39,769.83

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Solution

The fourth proportional to 69,979.40, 96,574.19 and 39,769.83 is: 54,883.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,979.40 : 96,574.19 = 39,769.83 : x
  2. Step 2: Convert to fraction form
    69,979.40/96,574.19 = 39,769.83/x
  3. Step 3: Cross multiply
    69,979.40x = 96,574.19 × 39,769.83
  4. Step 4: Simplify right side
    69,979.40x = 3,840,738,919.84
  5. Step 5: Solve for x
    x = 3,840,738,919.84/69,979.40
  6. Step 6: Final answer
    x = 54,883.85

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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.