Home / 41,345.58-57,057.46-30,978.97

Finding the Fourth Proportional to 41,345.58, 57,057.46 and 30,978.97

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Solution

The fourth proportional to 41,345.58, 57,057.46 and 30,978.97 is: 42,751.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,345.58 : 57,057.46 = 30,978.97 : x
  2. Step 2: Convert to fraction form
    41,345.58/57,057.46 = 30,978.97/x
  3. Step 3: Cross multiply
    41,345.58x = 57,057.46 × 30,978.97
  4. Step 4: Simplify right side
    41,345.58x = 1,767,581,376.02
  5. Step 5: Solve for x
    x = 1,767,581,376.02/41,345.58
  6. Step 6: Final answer
    x = 42,751.40

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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.