Home / 86,694.28-130,145.12-51,650.44

Finding the Fourth Proportional to 86,694.28, 130,145.12 and 51,650.44

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Solution

The fourth proportional to 86,694.28, 130,145.12 and 51,650.44 is: 77,537.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,694.28 : 130,145.12 = 51,650.44 : x
  2. Step 2: Convert to fraction form
    86,694.28/130,145.12 = 51,650.44/x
  3. Step 3: Cross multiply
    86,694.28x = 130,145.12 × 51,650.44
  4. Step 4: Simplify right side
    86,694.28x = 6,722,052,711.85
  5. Step 5: Solve for x
    x = 6,722,052,711.85/86,694.28
  6. Step 6: Final answer
    x = 77,537.44

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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.