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Finding the Fourth Proportional to 73,070.51, 109,610.01 and 20,484.09

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Solution

The fourth proportional to 73,070.51, 109,610.01 and 20,484.09 is: 30,727.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,070.51 : 109,610.01 = 20,484.09 : x
  2. Step 2: Convert to fraction form
    73,070.51/109,610.01 = 20,484.09/x
  3. Step 3: Cross multiply
    73,070.51x = 109,610.01 × 20,484.09
  4. Step 4: Simplify right side
    73,070.51x = 2,245,261,309.74
  5. Step 5: Solve for x
    x = 2,245,261,309.74/73,070.51
  6. Step 6: Final answer
    x = 30,727.33

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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.