Home / 56,584.89-78,086.78-31,091.54

Finding the Fourth Proportional to 56,584.89, 78,086.78 and 31,091.54

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Solution

The fourth proportional to 56,584.89, 78,086.78 and 31,091.54 is: 42,906.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,584.89 : 78,086.78 = 31,091.54 : x
  2. Step 2: Convert to fraction form
    56,584.89/78,086.78 = 31,091.54/x
  3. Step 3: Cross multiply
    56,584.89x = 78,086.78 × 31,091.54
  4. Step 4: Simplify right side
    56,584.89x = 2,427,838,243.84
  5. Step 5: Solve for x
    x = 2,427,838,243.84/56,584.89
  6. Step 6: Final answer
    x = 42,906.12

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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.