Home / 81,331.24-112,237.68-47,359.54

Finding the Fourth Proportional to 81,331.24, 112,237.68 and 47,359.54

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Solution

The fourth proportional to 81,331.24, 112,237.68 and 47,359.54 is: 65,356.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,331.24 : 112,237.68 = 47,359.54 : x
  2. Step 2: Convert to fraction form
    81,331.24/112,237.68 = 47,359.54/x
  3. Step 3: Cross multiply
    81,331.24x = 112,237.68 × 47,359.54
  4. Step 4: Simplify right side
    81,331.24x = 5,315,524,182.43
  5. Step 5: Solve for x
    x = 5,315,524,182.43/81,331.24
  6. Step 6: Final answer
    x = 65,356.49

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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.