Home / 77,281.13-115,843.27-43,932.28

Finding the Fourth Proportional to 77,281.13, 115,843.27 and 43,932.28

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Solution

The fourth proportional to 77,281.13, 115,843.27 and 43,932.28 is: 65,853.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,281.13 : 115,843.27 = 43,932.28 : x
  2. Step 2: Convert to fraction form
    77,281.13/115,843.27 = 43,932.28/x
  3. Step 3: Cross multiply
    77,281.13x = 115,843.27 × 43,932.28
  4. Step 4: Simplify right side
    77,281.13x = 5,089,259,153.53
  5. Step 5: Solve for x
    x = 5,089,259,153.53/77,281.13
  6. Step 6: Final answer
    x = 65,853.84

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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.