Home / 45,207.20-67,821.60-21,814.40

Finding the Fourth Proportional to 45,207.20, 67,821.60 and 21,814.40

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Solution

The fourth proportional to 45,207.20, 67,821.60 and 21,814.40 is: 32,726.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,207.20 : 67,821.60 = 21,814.40 : x
  2. Step 2: Convert to fraction form
    45,207.20/67,821.60 = 21,814.40/x
  3. Step 3: Cross multiply
    45,207.20x = 67,821.60 × 21,814.40
  4. Step 4: Simplify right side
    45,207.20x = 1,479,487,511.04
  5. Step 5: Solve for x
    x = 1,479,487,511.04/45,207.20
  6. Step 6: Final answer
    x = 32,726.81

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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.