Home / 55,711.20-76,881.22-30,217.46

Finding the Fourth Proportional to 55,711.20, 76,881.22 and 30,217.46

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Solution

The fourth proportional to 55,711.20, 76,881.22 and 30,217.46 is: 41,699.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,711.20 : 76,881.22 = 30,217.46 : x
  2. Step 2: Convert to fraction form
    55,711.20/76,881.22 = 30,217.46/x
  3. Step 3: Cross multiply
    55,711.20x = 76,881.22 × 30,217.46
  4. Step 4: Simplify right side
    55,711.20x = 2,323,155,190.10
  5. Step 5: Solve for x
    x = 2,323,155,190.10/55,711.20
  6. Step 6: Final answer
    x = 41,699.97

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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.