Home / 54,867.30-75,709.32-30,665.70

Finding the Fourth Proportional to 54,867.30, 75,709.32 and 30,665.70

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Solution

The fourth proportional to 54,867.30, 75,709.32 and 30,665.70 is: 42,314.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,867.30 : 75,709.32 = 30,665.70 : x
  2. Step 2: Convert to fraction form
    54,867.30/75,709.32 = 30,665.70/x
  3. Step 3: Cross multiply
    54,867.30x = 75,709.32 × 30,665.70
  4. Step 4: Simplify right side
    54,867.30x = 2,321,679,294.32
  5. Step 5: Solve for x
    x = 2,321,679,294.32/54,867.30
  6. Step 6: Final answer
    x = 42,314.44

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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.