Home / 45,725.87-68,555.86-20,753.39

Finding the Fourth Proportional to 45,725.87, 68,555.86 and 20,753.39

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Solution

The fourth proportional to 45,725.87, 68,555.86 and 20,753.39 is: 31,115.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,725.87 : 68,555.86 = 20,753.39 : x
  2. Step 2: Convert to fraction form
    45,725.87/68,555.86 = 20,753.39/x
  3. Step 3: Cross multiply
    45,725.87x = 68,555.86 × 20,753.39
  4. Step 4: Simplify right side
    45,725.87x = 1,422,766,499.37
  5. Step 5: Solve for x
    x = 1,422,766,499.37/45,725.87
  6. Step 6: Final answer
    x = 31,115.13

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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.