Home / 70,028.28-105,109.38-25,697.88

Finding the Fourth Proportional to 70,028.28, 105,109.38 and 25,697.88

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Solution

The fourth proportional to 70,028.28, 105,109.38 and 25,697.88 is: 38,571.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,028.28 : 105,109.38 = 25,697.88 : x
  2. Step 2: Convert to fraction form
    70,028.28/105,109.38 = 25,697.88/x
  3. Step 3: Cross multiply
    70,028.28x = 105,109.38 × 25,697.88
  4. Step 4: Simplify right side
    70,028.28x = 2,701,088,234.11
  5. Step 5: Solve for x
    x = 2,701,088,234.11/70,028.28
  6. Step 6: Final answer
    x = 38,571.39

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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.