Home / 67,634.40-101,396.62-28,220.88

Finding the Fourth Proportional to 67,634.40, 101,396.62 and 28,220.88

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Solution

The fourth proportional to 67,634.40, 101,396.62 and 28,220.88 is: 42,308.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,634.40 : 101,396.62 = 28,220.88 : x
  2. Step 2: Convert to fraction form
    67,634.40/101,396.62 = 28,220.88/x
  3. Step 3: Cross multiply
    67,634.40x = 101,396.62 × 28,220.88
  4. Step 4: Simplify right side
    67,634.40x = 2,861,501,845.43
  5. Step 5: Solve for x
    x = 2,861,501,845.43/67,634.40
  6. Step 6: Final answer
    x = 42,308.38

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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.