Home / 74,781.35-103,199.67-40,791.06

Finding the Fourth Proportional to 74,781.35, 103,199.67 and 40,791.06

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Solution

The fourth proportional to 74,781.35, 103,199.67 and 40,791.06 is: 56,292.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,781.35 : 103,199.67 = 40,791.06 : x
  2. Step 2: Convert to fraction form
    74,781.35/103,199.67 = 40,791.06/x
  3. Step 3: Cross multiply
    74,781.35x = 103,199.67 × 40,791.06
  4. Step 4: Simplify right side
    74,781.35x = 4,209,623,667.66
  5. Step 5: Solve for x
    x = 4,209,623,667.66/74,781.35
  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.