Home / 56,144.46-77,479.17-30,993.78

Finding the Fourth Proportional to 56,144.46, 77,479.17 and 30,993.78

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Solution

The fourth proportional to 56,144.46, 77,479.17 and 30,993.78 is: 42,771.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,144.46 : 77,479.17 = 30,993.78 : x
  2. Step 2: Convert to fraction form
    56,144.46/77,479.17 = 30,993.78/x
  3. Step 3: Cross multiply
    56,144.46x = 77,479.17 × 30,993.78
  4. Step 4: Simplify right side
    56,144.46x = 2,401,372,349.56
  5. Step 5: Solve for x
    x = 2,401,372,349.56/56,144.46
  6. Step 6: Final answer
    x = 42,771.31

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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.