Home / 45,405.42-68,107.45-20,427.83

Finding the Fourth Proportional to 45,405.42, 68,107.45 and 20,427.83

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Solution

The fourth proportional to 45,405.42, 68,107.45 and 20,427.83 is: 30,641.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,405.42 : 68,107.45 = 20,427.83 : x
  2. Step 2: Convert to fraction form
    45,405.42/68,107.45 = 20,427.83/x
  3. Step 3: Cross multiply
    45,405.42x = 68,107.45 × 20,427.83
  4. Step 4: Simplify right side
    45,405.42x = 1,391,287,410.33
  5. Step 5: Solve for x
    x = 1,391,287,410.33/45,405.42
  6. Step 6: Final answer
    x = 30,641.44

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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.