Home / 81,030.92-121,498.38-27,704.03

Finding the Fourth Proportional to 81,030.92, 121,498.38 and 27,704.03

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Solution

The fourth proportional to 81,030.92, 121,498.38 and 27,704.03 is: 41,539.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,030.92 : 121,498.38 = 27,704.03 : x
  2. Step 2: Convert to fraction form
    81,030.92/121,498.38 = 27,704.03/x
  3. Step 3: Cross multiply
    81,030.92x = 121,498.38 × 27,704.03
  4. Step 4: Simplify right side
    81,030.92x = 3,365,994,156.98
  5. Step 5: Solve for x
    x = 3,365,994,156.98/81,030.92
  6. Step 6: Final answer
    x = 41,539.63

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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.