Home / 45,367.20-68,021.64-21,661.92

Finding the Fourth Proportional to 45,367.20, 68,021.64 and 21,661.92

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Solution

The fourth proportional to 45,367.20, 68,021.64 and 21,661.92 is: 32,478.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,367.20 : 68,021.64 = 21,661.92 : x
  2. Step 2: Convert to fraction form
    45,367.20/68,021.64 = 21,661.92/x
  3. Step 3: Cross multiply
    45,367.20x = 68,021.64 × 21,661.92
  4. Step 4: Simplify right side
    45,367.20x = 1,473,479,323.95
  5. Step 5: Solve for x
    x = 1,473,479,323.95/45,367.20
  6. Step 6: Final answer
    x = 32,478.96

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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.