Home / 77,282.13-115,844.77-43,933.28

Finding the Fourth Proportional to 77,282.13, 115,844.77 and 43,933.28

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Solution

The fourth proportional to 77,282.13, 115,844.77 and 43,933.28 is: 65,855.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,282.13 : 115,844.77 = 43,933.28 : x
  2. Step 2: Convert to fraction form
    77,282.13/115,844.77 = 43,933.28/x
  3. Step 3: Cross multiply
    77,282.13x = 115,844.77 × 43,933.28
  4. Step 4: Simplify right side
    77,282.13x = 5,089,440,716.95
  5. Step 5: Solve for x
    x = 5,089,440,716.95/77,282.13
  6. Step 6: Final answer
    x = 65,855.34

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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.