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Finding the Fourth Proportional to 73,810.92, 110,734.92 and 21,220.50

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Solution

The fourth proportional to 73,810.92, 110,734.92 and 21,220.50 is: 31,836.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,810.92 : 110,734.92 = 21,220.50 : x
  2. Step 2: Convert to fraction form
    73,810.92/110,734.92 = 21,220.50/x
  3. Step 3: Cross multiply
    73,810.92x = 110,734.92 × 21,220.50
  4. Step 4: Simplify right side
    73,810.92x = 2,349,850,369.86
  5. Step 5: Solve for x
    x = 2,349,850,369.86/73,810.92
  6. Step 6: Final answer
    x = 31,836.08

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.