Home / 45,938.35-68,907.84-12,660.22

Finding the Fourth Proportional to 45,938.35, 68,907.84 and 12,660.22

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Solution

The fourth proportional to 45,938.35, 68,907.84 and 12,660.22 is: 18,990.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,938.35 : 68,907.84 = 12,660.22 : x
  2. Step 2: Convert to fraction form
    45,938.35/68,907.84 = 12,660.22/x
  3. Step 3: Cross multiply
    45,938.35x = 68,907.84 × 12,660.22
  4. Step 4: Simplify right side
    45,938.35x = 872,388,414.12
  5. Step 5: Solve for x
    x = 872,388,414.12/45,938.35
  6. Step 6: Final answer
    x = 18,990.42

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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.