Home / 81,968.52-113,118.21-49,702.98

Finding the Fourth Proportional to 81,968.52, 113,118.21 and 49,702.98

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Solution

The fourth proportional to 81,968.52, 113,118.21 and 49,702.98 is: 68,591.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,968.52 : 113,118.21 = 49,702.98 : x
  2. Step 2: Convert to fraction form
    81,968.52/113,118.21 = 49,702.98/x
  3. Step 3: Cross multiply
    81,968.52x = 113,118.21 × 49,702.98
  4. Step 4: Simplify right side
    81,968.52x = 5,622,312,129.27
  5. Step 5: Solve for x
    x = 5,622,312,129.27/81,968.52
  6. Step 6: Final answer
    x = 68,591.11

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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.