Home / 70,279.27-105,249.96-40,202.35

Finding the Fourth Proportional to 70,279.27, 105,249.96 and 40,202.35

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Solution

The fourth proportional to 70,279.27, 105,249.96 and 40,202.35 is: 60,206.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,279.27 : 105,249.96 = 40,202.35 : x
  2. Step 2: Convert to fraction form
    70,279.27/105,249.96 = 40,202.35/x
  3. Step 3: Cross multiply
    70,279.27x = 105,249.96 × 40,202.35
  4. Step 4: Simplify right side
    70,279.27x = 4,231,295,466.28
  5. Step 5: Solve for x
    x = 4,231,295,466.28/70,279.27
  6. Step 6: Final answer
    x = 60,206.88

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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.