Home / 55,489.18-76,575.39-30,338.68

Finding the Fourth Proportional to 55,489.18, 76,575.39 and 30,338.68

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Solution

The fourth proportional to 55,489.18, 76,575.39 and 30,338.68 is: 41,867.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,489.18 : 76,575.39 = 30,338.68 : x
  2. Step 2: Convert to fraction form
    55,489.18/76,575.39 = 30,338.68/x
  3. Step 3: Cross multiply
    55,489.18x = 76,575.39 × 30,338.68
  4. Step 4: Simplify right side
    55,489.18x = 2,323,196,253.09
  5. Step 5: Solve for x
    x = 2,323,196,253.09/55,489.18
  6. Step 6: Final answer
    x = 41,867.55

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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.