Home / 75,971.82-113,977.43-40,403.89

Finding the Fourth Proportional to 75,971.82, 113,977.43 and 40,403.89

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Solution

The fourth proportional to 75,971.82, 113,977.43 and 40,403.89 is: 60,616.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,971.82 : 113,977.43 = 40,403.89 : x
  2. Step 2: Convert to fraction form
    75,971.82/113,977.43 = 40,403.89/x
  3. Step 3: Cross multiply
    75,971.82x = 113,977.43 × 40,403.89
  4. Step 4: Simplify right side
    75,971.82x = 4,605,131,429.24
  5. Step 5: Solve for x
    x = 4,605,131,429.24/75,971.82
  6. Step 6: Final answer
    x = 60,616.31

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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.