Home / 45,382.02-68,049.63-20,400.72

Finding the Fourth Proportional to 45,382.02, 68,049.63 and 20,400.72

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Solution

The fourth proportional to 45,382.02, 68,049.63 and 20,400.72 is: 30,590.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,382.02 : 68,049.63 = 20,400.72 : x
  2. Step 2: Convert to fraction form
    45,382.02/68,049.63 = 20,400.72/x
  3. Step 3: Cross multiply
    45,382.02x = 68,049.63 × 20,400.72
  4. Step 4: Simplify right side
    45,382.02x = 1,388,261,447.73
  5. Step 5: Solve for x
    x = 1,388,261,447.73/45,382.02
  6. Step 6: Final answer
    x = 30,590.56

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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.