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Finding the Fourth Proportional to 55,670.58, 83,516.79 and 20,610.54

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Solution

The fourth proportional to 55,670.58, 83,516.79 and 20,610.54 is: 30,919.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,670.58 : 83,516.79 = 20,610.54 : x
  2. Step 2: Convert to fraction form
    55,670.58/83,516.79 = 20,610.54/x
  3. Step 3: Cross multiply
    55,670.58x = 83,516.79 × 20,610.54
  4. Step 4: Simplify right side
    55,670.58x = 1,721,326,140.97
  5. Step 5: Solve for x
    x = 1,721,326,140.97/55,670.58
  6. Step 6: Final answer
    x = 30,919.85

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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.