Home / 82,758.08-114,321.44-79,685.69

Finding the Fourth Proportional to 82,758.08, 114,321.44 and 79,685.69

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Solution

The fourth proportional to 82,758.08, 114,321.44 and 79,685.69 is: 110,077.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,758.08 : 114,321.44 = 79,685.69 : x
  2. Step 2: Convert to fraction form
    82,758.08/114,321.44 = 79,685.69/x
  3. Step 3: Cross multiply
    82,758.08x = 114,321.44 × 79,685.69
  4. Step 4: Simplify right side
    82,758.08x = 9,109,782,455.80
  5. Step 5: Solve for x
    x = 9,109,782,455.80/82,758.08
  6. Step 6: Final answer
    x = 110,077.25

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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.