Home / 67,943.34-101,915.01-21,199.86

Finding the Fourth Proportional to 67,943.34, 101,915.01 and 21,199.86

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Solution

The fourth proportional to 67,943.34, 101,915.01 and 21,199.86 is: 31,799.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,943.34 : 101,915.01 = 21,199.86 : x
  2. Step 2: Convert to fraction form
    67,943.34/101,915.01 = 21,199.86/x
  3. Step 3: Cross multiply
    67,943.34x = 101,915.01 × 21,199.86
  4. Step 4: Simplify right side
    67,943.34x = 2,160,583,943.90
  5. Step 5: Solve for x
    x = 2,160,583,943.90/67,943.34
  6. Step 6: Final answer
    x = 31,799.79

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Similar ratio
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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.