Home / 50,787.29-76,155.41-21,197.18

Finding the Fourth Proportional to 50,787.29, 76,155.41 and 21,197.18

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Solution

The fourth proportional to 50,787.29, 76,155.41 and 21,197.18 is: 31,785.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,787.29 : 76,155.41 = 21,197.18 : x
  2. Step 2: Convert to fraction form
    50,787.29/76,155.41 = 21,197.18/x
  3. Step 3: Cross multiply
    50,787.29x = 76,155.41 × 21,197.18
  4. Step 4: Simplify right side
    50,787.29x = 1,614,279,446.98
  5. Step 5: Solve for x
    x = 1,614,279,446.98/50,787.29
  6. Step 6: Final answer
    x = 31,785.11

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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.