Home / 54,983.74-75,879.96-31,109.80

Finding the Fourth Proportional to 54,983.74, 75,879.96 and 31,109.80

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Solution

The fourth proportional to 54,983.74, 75,879.96 and 31,109.80 is: 42,932.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,983.74 : 75,879.96 = 31,109.80 : x
  2. Step 2: Convert to fraction form
    54,983.74/75,879.96 = 31,109.80/x
  3. Step 3: Cross multiply
    54,983.74x = 75,879.96 × 31,109.80
  4. Step 4: Simplify right side
    54,983.74x = 2,360,610,379.61
  5. Step 5: Solve for x
    x = 2,360,610,379.61/54,983.74
  6. Step 6: Final answer
    x = 42,932.88

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1.5x scale

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.