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Finding the Fourth Proportional to 68,572.20, 103,031.10 and 43,624.20

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Solution

The fourth proportional to 68,572.20, 103,031.10 and 43,624.20 is: 65,546.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,572.20 : 103,031.10 = 43,624.20 : x
  2. Step 2: Convert to fraction form
    68,572.20/103,031.10 = 43,624.20/x
  3. Step 3: Cross multiply
    68,572.20x = 103,031.10 × 43,624.20
  4. Step 4: Simplify right side
    68,572.20x = 4,494,649,312.62
  5. Step 5: Solve for x
    x = 4,494,649,312.62/68,572.20
  6. Step 6: Final answer
    x = 65,546.23

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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.