Home / 66,731.32-100,067.82-19,973.26

Finding the Fourth Proportional to 66,731.32, 100,067.82 and 19,973.26

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Solution

The fourth proportional to 66,731.32, 100,067.82 and 19,973.26 is: 29,951.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,731.32 : 100,067.82 = 19,973.26 : x
  2. Step 2: Convert to fraction form
    66,731.32/100,067.82 = 19,973.26/x
  3. Step 3: Cross multiply
    66,731.32x = 100,067.82 × 19,973.26
  4. Step 4: Simplify right side
    66,731.32x = 1,998,680,586.49
  5. Step 5: Solve for x
    x = 1,998,680,586.49/66,731.32
  6. Step 6: Final answer
    x = 29,951.16

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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.