Home / 55,479.92-76,562.52-31,607.60

Finding the Fourth Proportional to 55,479.92, 76,562.52 and 31,607.60

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Solution

The fourth proportional to 55,479.92, 76,562.52 and 31,607.60 is: 43,618.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,479.92 : 76,562.52 = 31,607.60 : x
  2. Step 2: Convert to fraction form
    55,479.92/76,562.52 = 31,607.60/x
  3. Step 3: Cross multiply
    55,479.92x = 76,562.52 × 31,607.60
  4. Step 4: Simplify right side
    55,479.92x = 2,419,957,507.15
  5. Step 5: Solve for x
    x = 2,419,957,507.15/55,479.92
  6. Step 6: Final answer
    x = 43,618.62

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Why These Related Problems?

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