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Finding the Fourth Proportional to 72,374.22, 108,400.92 and 55,610.86

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Solution

The fourth proportional to 72,374.22, 108,400.92 and 55,610.86 is: 83,293.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,374.22 : 108,400.92 = 55,610.86 : x
  2. Step 2: Convert to fraction form
    72,374.22/108,400.92 = 55,610.86/x
  3. Step 3: Cross multiply
    72,374.22x = 108,400.92 × 55,610.86
  4. Step 4: Simplify right side
    72,374.22x = 6,028,267,983.01
  5. Step 5: Solve for x
    x = 6,028,267,983.01/72,374.22
  6. Step 6: Final answer
    x = 83,293.03

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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.