Home / 66,726.72-100,110.96-40,103.28

Finding the Fourth Proportional to 66,726.72, 100,110.96 and 40,103.28

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Solution

The fourth proportional to 66,726.72, 100,110.96 and 40,103.28 is: 60,167.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,726.72 : 100,110.96 = 40,103.28 : x
  2. Step 2: Convert to fraction form
    66,726.72/100,110.96 = 40,103.28/x
  3. Step 3: Cross multiply
    66,726.72x = 100,110.96 × 40,103.28
  4. Step 4: Simplify right side
    66,726.72x = 4,014,777,859.95
  5. Step 5: Solve for x
    x = 4,014,777,859.95/66,726.72
  6. Step 6: Final answer
    x = 60,167.47

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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.