Home / 45,858.29-68,787.54-12,578.84

Finding the Fourth Proportional to 45,858.29, 68,787.54 and 12,578.84

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Solution

The fourth proportional to 45,858.29, 68,787.54 and 12,578.84 is: 18,868.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,858.29 : 68,787.54 = 12,578.84 : x
  2. Step 2: Convert to fraction form
    45,858.29/68,787.54 = 12,578.84/x
  3. Step 3: Cross multiply
    45,858.29x = 68,787.54 × 12,578.84
  4. Step 4: Simplify right side
    45,858.29x = 865,267,115.72
  5. Step 5: Solve for x
    x = 865,267,115.72/45,858.29
  6. Step 6: Final answer
    x = 18,868.28

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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.