Home / 77,186.88-115,756.38-27,255.48

Finding the Fourth Proportional to 77,186.88, 115,756.38 and 27,255.48

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Solution

The fourth proportional to 77,186.88, 115,756.38 and 27,255.48 is: 40,874.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,186.88 : 115,756.38 = 27,255.48 : x
  2. Step 2: Convert to fraction form
    77,186.88/115,756.38 = 27,255.48/x
  3. Step 3: Cross multiply
    77,186.88x = 115,756.38 × 27,255.48
  4. Step 4: Simplify right side
    77,186.88x = 3,154,995,699.96
  5. Step 5: Solve for x
    x = 3,154,995,699.96/77,186.88
  6. Step 6: Final answer
    x = 40,874.77

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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.