Home / 55,691.96-76,855.03-31,818.56

Finding the Fourth Proportional to 55,691.96, 76,855.03 and 31,818.56

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Solution

The fourth proportional to 55,691.96, 76,855.03 and 31,818.56 is: 43,909.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,691.96 : 76,855.03 = 31,818.56 : x
  2. Step 2: Convert to fraction form
    55,691.96/76,855.03 = 31,818.56/x
  3. Step 3: Cross multiply
    55,691.96x = 76,855.03 × 31,818.56
  4. Step 4: Simplify right side
    55,691.96x = 2,445,415,919.54
  5. Step 5: Solve for x
    x = 2,445,415,919.54/55,691.96
  6. Step 6: Final answer
    x = 43,909.68

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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.