Home / 89,489.22-123,498-49,205.90

Finding the Fourth Proportional to 89,489.22, 123,498 and 49,205.90

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Solution

The fourth proportional to 89,489.22, 123,498 and 49,205.90 is: 67,905.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,489.22 : 123,498 = 49,205.90 : x
  2. Step 2: Convert to fraction form
    89,489.22/123,498 = 49,205.90/x
  3. Step 3: Cross multiply
    89,489.22x = 123,498 × 49,205.90
  4. Step 4: Simplify right side
    89,489.22x = 6,076,829,620.71
  5. Step 5: Solve for x
    x = 6,076,829,620.71/89,489.22
  6. Step 6: Final answer
    x = 67,905.72

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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.