Home / 66,744.48-100,116.75-19,997.36

Finding the Fourth Proportional to 66,744.48, 100,116.75 and 19,997.36

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Solution

The fourth proportional to 66,744.48, 100,116.75 and 19,997.36 is: 29,996.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,744.48 : 100,116.75 = 19,997.36 : x
  2. Step 2: Convert to fraction form
    66,744.48/100,116.75 = 19,997.36/x
  3. Step 3: Cross multiply
    66,744.48x = 100,116.75 × 19,997.36
  4. Step 4: Simplify right side
    66,744.48x = 2,002,070,691.78
  5. Step 5: Solve for x
    x = 2,002,070,691.78/66,744.48
  6. Step 6: Final answer
    x = 29,996.05

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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.