Home / 67,563.30-101,355.88-28,121.96

Finding the Fourth Proportional to 67,563.30, 101,355.88 and 28,121.96

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Solution

The fourth proportional to 67,563.30, 101,355.88 and 28,121.96 is: 42,187.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,563.30 : 101,355.88 = 28,121.96 : x
  2. Step 2: Convert to fraction form
    67,563.30/101,355.88 = 28,121.96/x
  3. Step 3: Cross multiply
    67,563.30x = 101,355.88 × 28,121.96
  4. Step 4: Simplify right side
    67,563.30x = 2,850,326,003.12
  5. Step 5: Solve for x
    x = 2,850,326,003.12/67,563.30
  6. Step 6: Final answer
    x = 42,187.49

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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.