Home / 50,915.20-76,282.43-21,267.79

Finding the Fourth Proportional to 50,915.20, 76,282.43 and 21,267.79

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Solution

The fourth proportional to 50,915.20, 76,282.43 and 21,267.79 is: 31,863.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,915.20 : 76,282.43 = 21,267.79 : x
  2. Step 2: Convert to fraction form
    50,915.20/76,282.43 = 21,267.79/x
  3. Step 3: Cross multiply
    50,915.20x = 76,282.43 × 21,267.79
  4. Step 4: Simplify right side
    50,915.20x = 1,622,358,320.52
  5. Step 5: Solve for x
    x = 1,622,358,320.52/50,915.20
  6. Step 6: Final answer
    x = 31,863.93

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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.