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Finding the Fourth Proportional to 67,233.70, 100,850.55 and 17,985.70

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Solution

The fourth proportional to 67,233.70, 100,850.55 and 17,985.70 is: 26,978.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,233.70 : 100,850.55 = 17,985.70 : x
  2. Step 2: Convert to fraction form
    67,233.70/100,850.55 = 17,985.70/x
  3. Step 3: Cross multiply
    67,233.70x = 100,850.55 × 17,985.70
  4. Step 4: Simplify right side
    67,233.70x = 1,813,867,737.14
  5. Step 5: Solve for x
    x = 1,813,867,737.14/67,233.70
  6. Step 6: Final answer
    x = 26,978.55

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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.