Home / 55,198.12-76,161.54-31,322.92

Finding the Fourth Proportional to 55,198.12, 76,161.54 and 31,322.92

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Solution

The fourth proportional to 55,198.12, 76,161.54 and 31,322.92 is: 43,218.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,198.12 : 76,161.54 = 31,322.92 : x
  2. Step 2: Convert to fraction form
    55,198.12/76,161.54 = 31,322.92/x
  3. Step 3: Cross multiply
    55,198.12x = 76,161.54 × 31,322.92
  4. Step 4: Simplify right side
    55,198.12x = 2,385,601,824.50
  5. Step 5: Solve for x
    x = 2,385,601,824.50/55,198.12
  6. Step 6: Final answer
    x = 43,218.90

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1.5x scale

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.