Home / 54,876.85-75,729.89-31,003.52

Finding the Fourth Proportional to 54,876.85, 75,729.89 and 31,003.52

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Solution

The fourth proportional to 54,876.85, 75,729.89 and 31,003.52 is: 42,784.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,876.85 : 75,729.89 = 31,003.52 : x
  2. Step 2: Convert to fraction form
    54,876.85/75,729.89 = 31,003.52/x
  3. Step 3: Cross multiply
    54,876.85x = 75,729.89 × 31,003.52
  4. Step 4: Simplify right side
    54,876.85x = 2,347,892,858.07
  5. Step 5: Solve for x
    x = 2,347,892,858.07/54,876.85
  6. Step 6: Final answer
    x = 42,784.76

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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.