Home / 45,665.48-68,498.22-12,385.56

Finding the Fourth Proportional to 45,665.48, 68,498.22 and 12,385.56

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Solution

The fourth proportional to 45,665.48, 68,498.22 and 12,385.56 is: 18,578.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,665.48 : 68,498.22 = 12,385.56 : x
  2. Step 2: Convert to fraction form
    45,665.48/68,498.22 = 12,385.56/x
  3. Step 3: Cross multiply
    45,665.48x = 68,498.22 × 12,385.56
  4. Step 4: Simplify right side
    45,665.48x = 848,388,813.70
  5. Step 5: Solve for x
    x = 848,388,813.70/45,665.48
  6. Step 6: Final answer
    x = 18,578.34

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Similar ratio
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1.5x scale

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.