Home / 77,144.58-115,682.85-27,209.97

Finding the Fourth Proportional to 77,144.58, 115,682.85 and 27,209.97

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Solution

The fourth proportional to 77,144.58, 115,682.85 and 27,209.97 is: 40,802.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,144.58 : 115,682.85 = 27,209.97 : x
  2. Step 2: Convert to fraction form
    77,144.58/115,682.85 = 27,209.97/x
  3. Step 3: Cross multiply
    77,144.58x = 115,682.85 × 27,209.97
  4. Step 4: Simplify right side
    77,144.58x = 3,147,726,878.01
  5. Step 5: Solve for x
    x = 3,147,726,878.01/77,144.58
  6. Step 6: Final answer
    x = 40,802.96

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1.5x scale

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.