Home / 54,741.71-75,530.64-30,863.78

Finding the Fourth Proportional to 54,741.71, 75,530.64 and 30,863.78

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Solution

The fourth proportional to 54,741.71, 75,530.64 and 30,863.78 is: 42,584.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,741.71 : 75,530.64 = 30,863.78 : x
  2. Step 2: Convert to fraction form
    54,741.71/75,530.64 = 30,863.78/x
  3. Step 3: Cross multiply
    54,741.71x = 75,530.64 × 30,863.78
  4. Step 4: Simplify right side
    54,741.71x = 2,331,160,678.57
  5. Step 5: Solve for x
    x = 2,331,160,678.57/54,741.71
  6. Step 6: Final answer
    x = 42,584.72

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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.