Home / 55,200.12-76,164.30-31,324.92

Finding the Fourth Proportional to 55,200.12, 76,164.30 and 31,324.92

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Solution

The fourth proportional to 55,200.12, 76,164.30 and 31,324.92 is: 43,221.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,200.12 : 76,164.30 = 31,324.92 : x
  2. Step 2: Convert to fraction form
    55,200.12/76,164.30 = 31,324.92/x
  3. Step 3: Cross multiply
    55,200.12x = 76,164.30 × 31,324.92
  4. Step 4: Simplify right side
    55,200.12x = 2,385,840,604.36
  5. Step 5: Solve for x
    x = 2,385,840,604.36/55,200.12
  6. Step 6: Final answer
    x = 43,221.66

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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.