Home / 81,050.44-121,581.60-21,884.80

Finding the Fourth Proportional to 81,050.44, 121,581.60 and 21,884.80

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Solution

The fourth proportional to 81,050.44, 121,581.60 and 21,884.80 is: 32,828.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,050.44 : 121,581.60 = 21,884.80 : x
  2. Step 2: Convert to fraction form
    81,050.44/121,581.60 = 21,884.80/x
  3. Step 3: Cross multiply
    81,050.44x = 121,581.60 × 21,884.80
  4. Step 4: Simplify right side
    81,050.44x = 2,660,788,999.68
  5. Step 5: Solve for x
    x = 2,660,788,999.68/81,050.44
  6. Step 6: Final answer
    x = 32,828.80

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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.