Home / 81,800.13-122,481.36-48,038.33

Finding the Fourth Proportional to 81,800.13, 122,481.36 and 48,038.33

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Solution

The fourth proportional to 81,800.13, 122,481.36 and 48,038.33 is: 71,928.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,800.13 : 122,481.36 = 48,038.33 : x
  2. Step 2: Convert to fraction form
    81,800.13/122,481.36 = 48,038.33/x
  3. Step 3: Cross multiply
    81,800.13x = 122,481.36 × 48,038.33
  4. Step 4: Simplify right side
    81,800.13x = 5,883,799,378.12
  5. Step 5: Solve for x
    x = 5,883,799,378.12/81,800.13
  6. Step 6: Final answer
    x = 71,928.97

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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.