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Finding the Fourth Proportional to 67,221.40, 100,832.10 and 62,847.40

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Solution

The fourth proportional to 67,221.40, 100,832.10 and 62,847.40 is: 94,271.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,221.40 : 100,832.10 = 62,847.40 : x
  2. Step 2: Convert to fraction form
    67,221.40/100,832.10 = 62,847.40/x
  3. Step 3: Cross multiply
    67,221.40x = 100,832.10 × 62,847.40
  4. Step 4: Simplify right side
    67,221.40x = 6,337,035,321.54
  5. Step 5: Solve for x
    x = 6,337,035,321.54/67,221.40
  6. Step 6: Final answer
    x = 94,271.10

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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.