Home / 47,775.31-71,663.60-18,194.78

Finding the Fourth Proportional to 47,775.31, 71,663.60 and 18,194.78

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Solution

The fourth proportional to 47,775.31, 71,663.60 and 18,194.78 is: 27,292.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,775.31 : 71,663.60 = 18,194.78 : x
  2. Step 2: Convert to fraction form
    47,775.31/71,663.60 = 18,194.78/x
  3. Step 3: Cross multiply
    47,775.31x = 71,663.60 × 18,194.78
  4. Step 4: Simplify right side
    47,775.31x = 1,303,903,660.65
  5. Step 5: Solve for x
    x = 1,303,903,660.65/47,775.31
  6. Step 6: Final answer
    x = 27,292.42

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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.