Home / 74,782.28-103,199.85-40,791.49

Finding the Fourth Proportional to 74,782.28, 103,199.85 and 40,791.49

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Solution

The fourth proportional to 74,782.28, 103,199.85 and 40,791.49 is: 56,292.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,782.28 : 103,199.85 = 40,791.49 : x
  2. Step 2: Convert to fraction form
    74,782.28/103,199.85 = 40,791.49/x
  3. Step 3: Cross multiply
    74,782.28x = 103,199.85 × 40,791.49
  4. Step 4: Simplify right side
    74,782.28x = 4,209,675,391.28
  5. Step 5: Solve for x
    x = 4,209,675,391.28/74,782.28
  6. Step 6: Final answer
    x = 56,292.42

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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.