Home / 81,986.54-113,141.66-47,537.95

Finding the Fourth Proportional to 81,986.54, 113,141.66 and 47,537.95

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Solution

The fourth proportional to 81,986.54, 113,141.66 and 47,537.95 is: 65,602.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,986.54 : 113,141.66 = 47,537.95 : x
  2. Step 2: Convert to fraction form
    81,986.54/113,141.66 = 47,537.95/x
  3. Step 3: Cross multiply
    81,986.54x = 113,141.66 × 47,537.95
  4. Step 4: Simplify right side
    81,986.54x = 5,378,522,233.72
  5. Step 5: Solve for x
    x = 5,378,522,233.72/81,986.54
  6. Step 6: Final answer
    x = 65,602.50

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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.