Home / 67,393.32-101,072.67-19,997.20

Finding the Fourth Proportional to 67,393.32, 101,072.67 and 19,997.20

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Solution

The fourth proportional to 67,393.32, 101,072.67 and 19,997.20 is: 29,990.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,393.32 : 101,072.67 = 19,997.20 : x
  2. Step 2: Convert to fraction form
    67,393.32/101,072.67 = 19,997.20/x
  3. Step 3: Cross multiply
    67,393.32x = 101,072.67 × 19,997.20
  4. Step 4: Simplify right side
    67,393.32x = 2,021,170,396.52
  5. Step 5: Solve for x
    x = 2,021,170,396.52/67,393.32
  6. Step 6: Final answer
    x = 29,990.66

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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.