Home / 74,874.90-103,326.57-40,883.28

Finding the Fourth Proportional to 74,874.90, 103,326.57 and 40,883.28

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Solution

The fourth proportional to 74,874.90, 103,326.57 and 40,883.28 is: 56,418.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,874.90 : 103,326.57 = 40,883.28 : x
  2. Step 2: Convert to fraction form
    74,874.90/103,326.57 = 40,883.28/x
  3. Step 3: Cross multiply
    74,874.90x = 103,326.57 × 40,883.28
  4. Step 4: Simplify right side
    74,874.90x = 4,224,329,092.75
  5. Step 5: Solve for x
    x = 4,224,329,092.75/74,874.90
  6. Step 6: Final answer
    x = 56,418.49

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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.