Home / 66,811.74-100,221.05-16,892.27

Finding the Fourth Proportional to 66,811.74, 100,221.05 and 16,892.27

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Solution

The fourth proportional to 66,811.74, 100,221.05 and 16,892.27 is: 25,339.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,811.74 : 100,221.05 = 16,892.27 : x
  2. Step 2: Convert to fraction form
    66,811.74/100,221.05 = 16,892.27/x
  3. Step 3: Cross multiply
    66,811.74x = 100,221.05 × 16,892.27
  4. Step 4: Simplify right side
    66,811.74x = 1,692,961,329.07
  5. Step 5: Solve for x
    x = 1,692,961,329.07/66,811.74
  6. Step 6: Final answer
    x = 25,339.28

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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.