Home / 67,311.55-100,966.18-19,926.43

Finding the Fourth Proportional to 67,311.55, 100,966.18 and 19,926.43

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Solution

The fourth proportional to 67,311.55, 100,966.18 and 19,926.43 is: 29,889.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,311.55 : 100,966.18 = 19,926.43 : x
  2. Step 2: Convert to fraction form
    67,311.55/100,966.18 = 19,926.43/x
  3. Step 3: Cross multiply
    67,311.55x = 100,966.18 × 19,926.43
  4. Step 4: Simplify right side
    67,311.55x = 2,011,895,720.74
  5. Step 5: Solve for x
    x = 2,011,895,720.74/67,311.55
  6. Step 6: Final answer
    x = 29,889.31

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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.