Home / 77,656.32-116,286.84-51,321.60

Finding the Fourth Proportional to 77,656.32, 116,286.84 and 51,321.60

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Solution

The fourth proportional to 77,656.32, 116,286.84 and 51,321.60 is: 76,851.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,656.32 : 116,286.84 = 51,321.60 : x
  2. Step 2: Convert to fraction form
    77,656.32/116,286.84 = 51,321.60/x
  3. Step 3: Cross multiply
    77,656.32x = 116,286.84 × 51,321.60
  4. Step 4: Simplify right side
    77,656.32x = 5,968,026,687.74
  5. Step 5: Solve for x
    x = 5,968,026,687.74/77,656.32
  6. Step 6: Final answer
    x = 76,851.78

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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.