Home / 54,974.02-75,863.70-31,100.50

Finding the Fourth Proportional to 54,974.02, 75,863.70 and 31,100.50

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Solution

The fourth proportional to 54,974.02, 75,863.70 and 31,100.50 is: 42,918.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,974.02 : 75,863.70 = 31,100.50 : x
  2. Step 2: Convert to fraction form
    54,974.02/75,863.70 = 31,100.50/x
  3. Step 3: Cross multiply
    54,974.02x = 75,863.70 × 31,100.50
  4. Step 4: Simplify right side
    54,974.02x = 2,359,399,001.85
  5. Step 5: Solve for x
    x = 2,359,399,001.85/54,974.02
  6. Step 6: Final answer
    x = 42,918.44

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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.