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Finding the Fourth Proportional to 81,501.68, 122,239.40 and 22,323.51

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Solution

The fourth proportional to 81,501.68, 122,239.40 and 22,323.51 is: 33,481.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,501.68 : 122,239.40 = 22,323.51 : x
  2. Step 2: Convert to fraction form
    81,501.68/122,239.40 = 22,323.51/x
  3. Step 3: Cross multiply
    81,501.68x = 122,239.40 × 22,323.51
  4. Step 4: Simplify right side
    81,501.68x = 2,728,811,745.48
  5. Step 5: Solve for x
    x = 2,728,811,745.48/81,501.68
  6. Step 6: Final answer
    x = 33,481.66

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1.5x scale

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.