Home / 90,989.11-125,563.25-50,701.98

Finding the Fourth Proportional to 90,989.11, 125,563.25 and 50,701.98

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Solution

The fourth proportional to 90,989.11, 125,563.25 and 50,701.98 is: 69,967.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,989.11 : 125,563.25 = 50,701.98 : x
  2. Step 2: Convert to fraction form
    90,989.11/125,563.25 = 50,701.98/x
  3. Step 3: Cross multiply
    90,989.11x = 125,563.25 × 50,701.98
  4. Step 4: Simplify right side
    90,989.11x = 6,366,305,702.65
  5. Step 5: Solve for x
    x = 6,366,305,702.65/90,989.11
  6. Step 6: Final answer
    x = 69,967.78

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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.