Home / 54,863.08-75,709.70-30,989

Finding the Fourth Proportional to 54,863.08, 75,709.70 and 30,989

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Solution

The fourth proportional to 54,863.08, 75,709.70 and 30,989 is: 42,764.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,863.08 : 75,709.70 = 30,989 : x
  2. Step 2: Convert to fraction form
    54,863.08/75,709.70 = 30,989/x
  3. Step 3: Cross multiply
    54,863.08x = 75,709.70 × 30,989
  4. Step 4: Simplify right side
    54,863.08x = 2,346,167,893.30
  5. Step 5: Solve for x
    x = 2,346,167,893.30/54,863.08
  6. Step 6: Final answer
    x = 42,764.06

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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.