Home / 88,711.35-122,403.37-50,978.31

Finding the Fourth Proportional to 88,711.35, 122,403.37 and 50,978.31

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Solution

The fourth proportional to 88,711.35, 122,403.37 and 50,978.31 is: 70,339.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,711.35 : 122,403.37 = 50,978.31 : x
  2. Step 2: Convert to fraction form
    88,711.35/122,403.37 = 50,978.31/x
  3. Step 3: Cross multiply
    88,711.35x = 122,403.37 × 50,978.31
  4. Step 4: Simplify right side
    88,711.35x = 6,239,916,940.90
  5. Step 5: Solve for x
    x = 6,239,916,940.90/88,711.35
  6. Step 6: Final answer
    x = 70,339.56

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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.