Home / 54,979.50-75,871.73-31,105.66

Finding the Fourth Proportional to 54,979.50, 75,871.73 and 31,105.66

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Solution

The fourth proportional to 54,979.50, 75,871.73 and 31,105.66 is: 42,925.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,979.50 : 75,871.73 = 31,105.66 : x
  2. Step 2: Convert to fraction form
    54,979.50/75,871.73 = 31,105.66/x
  3. Step 3: Cross multiply
    54,979.50x = 75,871.73 × 31,105.66
  4. Step 4: Simplify right side
    54,979.50x = 2,360,040,236.99
  5. Step 5: Solve for x
    x = 2,360,040,236.99/54,979.50
  6. Step 6: Final answer
    x = 42,925.82

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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.