Home / 77,144.13-115,725.51-27,213.98

Finding the Fourth Proportional to 77,144.13, 115,725.51 and 27,213.98

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Solution

The fourth proportional to 77,144.13, 115,725.51 and 27,213.98 is: 40,824.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,144.13 : 115,725.51 = 27,213.98 : x
  2. Step 2: Convert to fraction form
    77,144.13/115,725.51 = 27,213.98/x
  3. Step 3: Cross multiply
    77,144.13x = 115,725.51 × 27,213.98
  4. Step 4: Simplify right side
    77,144.13x = 3,149,351,136.00
  5. Step 5: Solve for x
    x = 3,149,351,136.00/77,144.13
  6. Step 6: Final answer
    x = 40,824.25

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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.