Home / 45,669.20-68,495.72-12,391.85

Finding the Fourth Proportional to 45,669.20, 68,495.72 and 12,391.85

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Solution

The fourth proportional to 45,669.20, 68,495.72 and 12,391.85 is: 18,585.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,669.20 : 68,495.72 = 12,391.85 : x
  2. Step 2: Convert to fraction form
    45,669.20/68,495.72 = 12,391.85/x
  3. Step 3: Cross multiply
    45,669.20x = 68,495.72 × 12,391.85
  4. Step 4: Simplify right side
    45,669.20x = 848,788,995.30
  5. Step 5: Solve for x
    x = 848,788,995.30/45,669.20
  6. Step 6: Final answer
    x = 18,585.59

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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.