Home / 74,764.78-103,175.33-40,773.33

Finding the Fourth Proportional to 74,764.78, 103,175.33 and 40,773.33

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Solution

The fourth proportional to 74,764.78, 103,175.33 and 40,773.33 is: 56,267.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,764.78 : 103,175.33 = 40,773.33 : x
  2. Step 2: Convert to fraction form
    74,764.78/103,175.33 = 40,773.33/x
  3. Step 3: Cross multiply
    74,764.78x = 103,175.33 × 40,773.33
  4. Step 4: Simplify right side
    74,764.78x = 4,206,801,777.95
  5. Step 5: Solve for x
    x = 4,206,801,777.95/74,764.78
  6. Step 6: Final answer
    x = 56,267.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.