Home / 55,420.92-83,131.74-22,143.78

Finding the Fourth Proportional to 55,420.92, 83,131.74 and 22,143.78

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Solution

The fourth proportional to 55,420.92, 83,131.74 and 22,143.78 is: 33,215.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,420.92 : 83,131.74 = 22,143.78 : x
  2. Step 2: Convert to fraction form
    55,420.92/83,131.74 = 22,143.78/x
  3. Step 3: Cross multiply
    55,420.92x = 83,131.74 × 22,143.78
  4. Step 4: Simplify right side
    55,420.92x = 1,840,850,961.58
  5. Step 5: Solve for x
    x = 1,840,850,961.58/55,420.92
  6. Step 6: Final answer
    x = 33,215.81

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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.