Home / 55,221.23-76,205.66-31,348.31

Finding the Fourth Proportional to 55,221.23, 76,205.66 and 31,348.31

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Solution

The fourth proportional to 55,221.23, 76,205.66 and 31,348.31 is: 43,260.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,221.23 : 76,205.66 = 31,348.31 : x
  2. Step 2: Convert to fraction form
    55,221.23/76,205.66 = 31,348.31/x
  3. Step 3: Cross multiply
    55,221.23x = 76,205.66 × 31,348.31
  4. Step 4: Simplify right side
    55,221.23x = 2,388,918,115.66
  5. Step 5: Solve for x
    x = 2,388,918,115.66/55,221.23
  6. Step 6: Final answer
    x = 43,260.87

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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.