Home / 54,805.32-75,631.05-30,939.75

Finding the Fourth Proportional to 54,805.32, 75,631.05 and 30,939.75

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Solution

The fourth proportional to 54,805.32, 75,631.05 and 30,939.75 is: 42,696.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,805.32 : 75,631.05 = 30,939.75 : x
  2. Step 2: Convert to fraction form
    54,805.32/75,631.05 = 30,939.75/x
  3. Step 3: Cross multiply
    54,805.32x = 75,631.05 × 30,939.75
  4. Step 4: Simplify right side
    54,805.32x = 2,340,005,779.24
  5. Step 5: Solve for x
    x = 2,340,005,779.24/54,805.32
  6. Step 6: Final answer
    x = 42,696.69

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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.