Home / 54,886.72-75,742.68-31,012.88

Finding the Fourth Proportional to 54,886.72, 75,742.68 and 31,012.88

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Solution

The fourth proportional to 54,886.72, 75,742.68 and 31,012.88 is: 42,797.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,886.72 : 75,742.68 = 31,012.88 : x
  2. Step 2: Convert to fraction form
    54,886.72/75,742.68 = 31,012.88/x
  3. Step 3: Cross multiply
    54,886.72x = 75,742.68 × 31,012.88
  4. Step 4: Simplify right side
    54,886.72x = 2,348,998,645.72
  5. Step 5: Solve for x
    x = 2,348,998,645.72/54,886.72
  6. Step 6: Final answer
    x = 42,797.22

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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.