Home / 55,221.85-76,207.23-31,348.52

Finding the Fourth Proportional to 55,221.85, 76,207.23 and 31,348.52

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Solution

The fourth proportional to 55,221.85, 76,207.23 and 31,348.52 is: 43,261.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,221.85 : 76,207.23 = 31,348.52 : x
  2. Step 2: Convert to fraction form
    55,221.85/76,207.23 = 31,348.52/x
  3. Step 3: Cross multiply
    55,221.85x = 76,207.23 × 31,348.52
  4. Step 4: Simplify right side
    55,221.85x = 2,388,983,778.54
  5. Step 5: Solve for x
    x = 2,388,983,778.54/55,221.85
  6. Step 6: Final answer
    x = 43,261.57

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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.