Home / 56,975.78-78,622.52-31,481.87

Finding the Fourth Proportional to 56,975.78, 78,622.52 and 31,481.87

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Solution

The fourth proportional to 56,975.78, 78,622.52 and 31,481.87 is: 43,442.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,975.78 : 78,622.52 = 31,481.87 : x
  2. Step 2: Convert to fraction form
    56,975.78/78,622.52 = 31,481.87/x
  3. Step 3: Cross multiply
    56,975.78x = 78,622.52 × 31,481.87
  4. Step 4: Simplify right side
    56,975.78x = 2,475,183,403.19
  5. Step 5: Solve for x
    x = 2,475,183,403.19/56,975.78
  6. Step 6: Final answer
    x = 43,442.73

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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.