Home / 40,082.28-60,106.32-13,789.68

Finding the Fourth Proportional to 40,082.28, 60,106.32 and 13,789.68

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Solution

The fourth proportional to 40,082.28, 60,106.32 and 13,789.68 is: 20,678.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,082.28 : 60,106.32 = 13,789.68 : x
  2. Step 2: Convert to fraction form
    40,082.28/60,106.32 = 13,789.68/x
  3. Step 3: Cross multiply
    40,082.28x = 60,106.32 × 13,789.68
  4. Step 4: Simplify right side
    40,082.28x = 828,846,918.78
  5. Step 5: Solve for x
    x = 828,846,918.78/40,082.28
  6. Step 6: Final answer
    x = 20,678.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.