Home / 68,867.40-103,301.10-47,872.20

Finding the Fourth Proportional to 68,867.40, 103,301.10 and 47,872.20

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Solution

The fourth proportional to 68,867.40, 103,301.10 and 47,872.20 is: 71,808.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,867.40 : 103,301.10 = 47,872.20 : x
  2. Step 2: Convert to fraction form
    68,867.40/103,301.10 = 47,872.20/x
  3. Step 3: Cross multiply
    68,867.40x = 103,301.10 × 47,872.20
  4. Step 4: Simplify right side
    68,867.40x = 4,945,250,919.42
  5. Step 5: Solve for x
    x = 4,945,250,919.42/68,867.40
  6. Step 6: Final answer
    x = 71,808.30

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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.