Home / 51,831-77,743.43-30,495.71

Finding the Fourth Proportional to 51,831, 77,743.43 and 30,495.71

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Solution

The fourth proportional to 51,831, 77,743.43 and 30,495.71 is: 45,741.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,831 : 77,743.43 = 30,495.71 : x
  2. Step 2: Convert to fraction form
    51,831/77,743.43 = 30,495.71/x
  3. Step 3: Cross multiply
    51,831x = 77,743.43 × 30,495.71
  4. Step 4: Simplify right side
    51,831x = 2,370,840,554.49
  5. Step 5: Solve for x
    x = 2,370,840,554.49/51,831
  6. Step 6: Final answer
    x = 45,741.75

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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.