Home / 49,787.88-74,676.06-12,854.76

Finding the Fourth Proportional to 49,787.88, 74,676.06 and 12,854.76

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Solution

The fourth proportional to 49,787.88, 74,676.06 and 12,854.76 is: 19,280.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,787.88 : 74,676.06 = 12,854.76 : x
  2. Step 2: Convert to fraction form
    49,787.88/74,676.06 = 12,854.76/x
  3. Step 3: Cross multiply
    49,787.88x = 74,676.06 × 12,854.76
  4. Step 4: Simplify right side
    49,787.88x = 959,942,829.05
  5. Step 5: Solve for x
    x = 959,942,829.05/49,787.88
  6. Step 6: Final answer
    x = 19,280.65

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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.