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Finding the Fourth Proportional to 73,804.80, 110,998.80 and 66,223.20

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Solution

The fourth proportional to 73,804.80, 110,998.80 and 66,223.20 is: 99,596.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,804.80 : 110,998.80 = 66,223.20 : x
  2. Step 2: Convert to fraction form
    73,804.80/110,998.80 = 66,223.20/x
  3. Step 3: Cross multiply
    73,804.80x = 110,998.80 × 66,223.20
  4. Step 4: Simplify right side
    73,804.80x = 7,350,695,732.16
  5. Step 5: Solve for x
    x = 7,350,695,732.16/73,804.80
  6. Step 6: Final answer
    x = 99,596.45

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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.