Home / 81,542.76-122,313.06-22,378.38

Finding the Fourth Proportional to 81,542.76, 122,313.06 and 22,378.38

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Solution

The fourth proportional to 81,542.76, 122,313.06 and 22,378.38 is: 33,567.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,542.76 : 122,313.06 = 22,378.38 : x
  2. Step 2: Convert to fraction form
    81,542.76/122,313.06 = 22,378.38/x
  3. Step 3: Cross multiply
    81,542.76x = 122,313.06 × 22,378.38
  4. Step 4: Simplify right side
    81,542.76x = 2,737,168,135.64
  5. Step 5: Solve for x
    x = 2,737,168,135.64/81,542.76
  6. Step 6: Final answer
    x = 33,567.27

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1.5x scale

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.