Home / 56,311.74-77,768.37-48,721.64

Finding the Fourth Proportional to 56,311.74, 77,768.37 and 48,721.64

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Solution

The fourth proportional to 56,311.74, 77,768.37 and 48,721.64 is: 67,286.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,311.74 : 77,768.37 = 48,721.64 : x
  2. Step 2: Convert to fraction form
    56,311.74/77,768.37 = 48,721.64/x
  3. Step 3: Cross multiply
    56,311.74x = 77,768.37 × 48,721.64
  4. Step 4: Simplify right side
    56,311.74x = 3,789,002,137.68
  5. Step 5: Solve for x
    x = 3,789,002,137.68/56,311.74
  6. Step 6: Final answer
    x = 67,286.18

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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.