Home / 56,481.36-77,881.28-36,310.38

Finding the Fourth Proportional to 56,481.36, 77,881.28 and 36,310.38

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Solution

The fourth proportional to 56,481.36, 77,881.28 and 36,310.38 is: 50,067.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,481.36 : 77,881.28 = 36,310.38 : x
  2. Step 2: Convert to fraction form
    56,481.36/77,881.28 = 36,310.38/x
  3. Step 3: Cross multiply
    56,481.36x = 77,881.28 × 36,310.38
  4. Step 4: Simplify right side
    56,481.36x = 2,827,898,690.13
  5. Step 5: Solve for x
    x = 2,827,898,690.13/56,481.36
  6. Step 6: Final answer
    x = 50,067.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.