Home / 81,140.92-111,968.58-44,840.68

Finding the Fourth Proportional to 81,140.92, 111,968.58 and 44,840.68

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Solution

The fourth proportional to 81,140.92, 111,968.58 and 44,840.68 is: 61,876.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,140.92 : 111,968.58 = 44,840.68 : x
  2. Step 2: Convert to fraction form
    81,140.92/111,968.58 = 44,840.68/x
  3. Step 3: Cross multiply
    81,140.92x = 111,968.58 × 44,840.68
  4. Step 4: Simplify right side
    81,140.92x = 5,020,747,265.83
  5. Step 5: Solve for x
    x = 5,020,747,265.83/81,140.92
  6. Step 6: Final answer
    x = 61,876.88

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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.