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Finding the Fourth Proportional to 55,194.86, 76,166.78 and 31,320.11

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Solution

The fourth proportional to 55,194.86, 76,166.78 and 31,320.11 is: 43,220.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,194.86 : 76,166.78 = 31,320.11 : x
  2. Step 2: Convert to fraction form
    55,194.86/76,166.78 = 31,320.11/x
  3. Step 3: Cross multiply
    55,194.86x = 76,166.78 × 31,320.11
  4. Step 4: Simplify right side
    55,194.86x = 2,385,551,390.51
  5. Step 5: Solve for x
    x = 2,385,551,390.51/55,194.86
  6. Step 6: Final answer
    x = 43,220.54

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.