Home / 77,742.12-107,265.12-43,744

Finding the Fourth Proportional to 77,742.12, 107,265.12 and 43,744

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Solution

The fourth proportional to 77,742.12, 107,265.12 and 43,744 is: 60,356.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,742.12 : 107,265.12 = 43,744 : x
  2. Step 2: Convert to fraction form
    77,742.12/107,265.12 = 43,744/x
  3. Step 3: Cross multiply
    77,742.12x = 107,265.12 × 43,744
  4. Step 4: Simplify right side
    77,742.12x = 4,692,205,409.28
  5. Step 5: Solve for x
    x = 4,692,205,409.28/77,742.12
  6. Step 6: Final answer
    x = 60,356.03

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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.