Home / 68,171.32-102,209.30-30,202.10

Finding the Fourth Proportional to 68,171.32, 102,209.30 and 30,202.10

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Solution

The fourth proportional to 68,171.32, 102,209.30 and 30,202.10 is: 45,282.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,171.32 : 102,209.30 = 30,202.10 : x
  2. Step 2: Convert to fraction form
    68,171.32/102,209.30 = 30,202.10/x
  3. Step 3: Cross multiply
    68,171.32x = 102,209.30 × 30,202.10
  4. Step 4: Simplify right side
    68,171.32x = 3,086,935,499.53
  5. Step 5: Solve for x
    x = 3,086,935,499.53/68,171.32
  6. Step 6: Final answer
    x = 45,282.03

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1.5x scale

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.