Home / 81,970.02-113,120.28-49,704.48

Finding the Fourth Proportional to 81,970.02, 113,120.28 and 49,704.48

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Solution

The fourth proportional to 81,970.02, 113,120.28 and 49,704.48 is: 68,593.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,970.02 : 113,120.28 = 49,704.48 : x
  2. Step 2: Convert to fraction form
    81,970.02/113,120.28 = 49,704.48/x
  3. Step 3: Cross multiply
    81,970.02x = 113,120.28 × 49,704.48
  4. Step 4: Simplify right side
    81,970.02x = 5,622,584,694.85
  5. Step 5: Solve for x
    x = 5,622,584,694.85/81,970.02
  6. Step 6: Final answer
    x = 68,593.18

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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.