Home / 77,067.74-115,588.23-27,136.10

Finding the Fourth Proportional to 77,067.74, 115,588.23 and 27,136.10

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Solution

The fourth proportional to 77,067.74, 115,588.23 and 27,136.10 is: 40,699.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,067.74 : 115,588.23 = 27,136.10 : x
  2. Step 2: Convert to fraction form
    77,067.74/115,588.23 = 27,136.10/x
  3. Step 3: Cross multiply
    77,067.74x = 115,588.23 × 27,136.10
  4. Step 4: Simplify right side
    77,067.74x = 3,136,613,190.16
  5. Step 5: Solve for x
    x = 3,136,613,190.16/77,067.74
  6. Step 6: Final answer
    x = 40,699.43

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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.