Home / 66,511.22-91,786.02-36,296.78

Finding the Fourth Proportional to 66,511.22, 91,786.02 and 36,296.78

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Solution

The fourth proportional to 66,511.22, 91,786.02 and 36,296.78 is: 50,089.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,511.22 : 91,786.02 = 36,296.78 : x
  2. Step 2: Convert to fraction form
    66,511.22/91,786.02 = 36,296.78/x
  3. Step 3: Cross multiply
    66,511.22x = 91,786.02 × 36,296.78
  4. Step 4: Simplify right side
    66,511.22x = 3,331,536,975.02
  5. Step 5: Solve for x
    x = 3,331,536,975.02/66,511.22
  6. Step 6: Final answer
    x = 50,089.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.