Home / 45,418.80-68,047.20-21,993.60

Finding the Fourth Proportional to 45,418.80, 68,047.20 and 21,993.60

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Solution

The fourth proportional to 45,418.80, 68,047.20 and 21,993.60 is: 32,951.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,418.80 : 68,047.20 = 21,993.60 : x
  2. Step 2: Convert to fraction form
    45,418.80/68,047.20 = 21,993.60/x
  3. Step 3: Cross multiply
    45,418.80x = 68,047.20 × 21,993.60
  4. Step 4: Simplify right side
    45,418.80x = 1,496,602,897.92
  5. Step 5: Solve for x
    x = 1,496,602,897.92/45,418.80
  6. Step 6: Final answer
    x = 32,951.18

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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.