Home / 73,899.12-110,849.60-21,309.06

Finding the Fourth Proportional to 73,899.12, 110,849.60 and 21,309.06

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Solution

The fourth proportional to 73,899.12, 110,849.60 and 21,309.06 is: 31,963.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,899.12 : 110,849.60 = 21,309.06 : x
  2. Step 2: Convert to fraction form
    73,899.12/110,849.60 = 21,309.06/x
  3. Step 3: Cross multiply
    73,899.12x = 110,849.60 × 21,309.06
  4. Step 4: Simplify right side
    73,899.12x = 2,362,100,777.38
  5. Step 5: Solve for x
    x = 2,362,100,777.38/73,899.12
  6. Step 6: Final answer
    x = 31,963.86

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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.