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Finding the Fourth Proportional to 66,927.78, 100,341.74 and 40,267.52

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Solution

The fourth proportional to 66,927.78, 100,341.74 and 40,267.52 is: 60,371.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,927.78 : 100,341.74 = 40,267.52 : x
  2. Step 2: Convert to fraction form
    66,927.78/100,341.74 = 40,267.52/x
  3. Step 3: Cross multiply
    66,927.78x = 100,341.74 × 40,267.52
  4. Step 4: Simplify right side
    66,927.78x = 4,040,512,820.95
  5. Step 5: Solve for x
    x = 4,040,512,820.95/66,927.78
  6. Step 6: Final answer
    x = 60,371.24

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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.