Home / 90,563.30-135,907.24-31,398.97

Finding the Fourth Proportional to 90,563.30, 135,907.24 and 31,398.97

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Solution

The fourth proportional to 90,563.30, 135,907.24 and 31,398.97 is: 47,120.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,563.30 : 135,907.24 = 31,398.97 : x
  2. Step 2: Convert to fraction form
    90,563.30/135,907.24 = 31,398.97/x
  3. Step 3: Cross multiply
    90,563.30x = 135,907.24 × 31,398.97
  4. Step 4: Simplify right side
    90,563.30x = 4,267,347,194.55
  5. Step 5: Solve for x
    x = 4,267,347,194.55/90,563.30
  6. Step 6: Final answer
    x = 47,120.05

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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.