Home / 70,178.28-105,309.11-25,836.18

Finding the Fourth Proportional to 70,178.28, 105,309.11 and 25,836.18

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Solution

The fourth proportional to 70,178.28, 105,309.11 and 25,836.18 is: 38,769.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,178.28 : 105,309.11 = 25,836.18 : x
  2. Step 2: Convert to fraction form
    70,178.28/105,309.11 = 25,836.18/x
  3. Step 3: Cross multiply
    70,178.28x = 105,309.11 × 25,836.18
  4. Step 4: Simplify right side
    70,178.28x = 2,720,785,121.60
  5. Step 5: Solve for x
    x = 2,720,785,121.60/70,178.28
  6. Step 6: Final answer
    x = 38,769.62

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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.