Home / 77,165.22-115,718.40-27,236.01

Finding the Fourth Proportional to 77,165.22, 115,718.40 and 27,236.01

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Solution

The fourth proportional to 77,165.22, 115,718.40 and 27,236.01 is: 40,843.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,165.22 : 115,718.40 = 27,236.01 : x
  2. Step 2: Convert to fraction form
    77,165.22/115,718.40 = 27,236.01/x
  3. Step 3: Cross multiply
    77,165.22x = 115,718.40 × 27,236.01
  4. Step 4: Simplify right side
    77,165.22x = 3,151,707,499.58
  5. Step 5: Solve for x
    x = 3,151,707,499.58/77,165.22
  6. Step 6: Final answer
    x = 40,843.63

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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.