Home / 81,743.32-122,624.58-29,160.28

Finding the Fourth Proportional to 81,743.32, 122,624.58 and 29,160.28

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Solution

The fourth proportional to 81,743.32, 122,624.58 and 29,160.28 is: 43,743.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,743.32 : 122,624.58 = 29,160.28 : x
  2. Step 2: Convert to fraction form
    81,743.32/122,624.58 = 29,160.28/x
  3. Step 3: Cross multiply
    81,743.32x = 122,624.58 × 29,160.28
  4. Step 4: Simplify right side
    81,743.32x = 3,575,767,087.68
  5. Step 5: Solve for x
    x = 3,575,767,087.68/81,743.32
  6. Step 6: Final answer
    x = 43,743.84

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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.