Home / 81,538.14-122,342.58-44,124.51

Finding the Fourth Proportional to 81,538.14, 122,342.58 and 44,124.51

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Solution

The fourth proportional to 81,538.14, 122,342.58 and 44,124.51 is: 66,205.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,538.14 : 122,342.58 = 44,124.51 : x
  2. Step 2: Convert to fraction form
    81,538.14/122,342.58 = 44,124.51/x
  3. Step 3: Cross multiply
    81,538.14x = 122,342.58 × 44,124.51
  4. Step 4: Simplify right side
    81,538.14x = 5,398,306,394.64
  5. Step 5: Solve for x
    x = 5,398,306,394.64/81,538.14
  6. Step 6: Final answer
    x = 66,205.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.