Home / 54,144.13-74,715.10-31,481.51

Finding the Fourth Proportional to 54,144.13, 74,715.10 and 31,481.51

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Solution

The fourth proportional to 54,144.13, 74,715.10 and 31,481.51 is: 43,442.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,144.13 : 74,715.10 = 31,481.51 : x
  2. Step 2: Convert to fraction form
    54,144.13/74,715.10 = 31,481.51/x
  3. Step 3: Cross multiply
    54,144.13x = 74,715.10 × 31,481.51
  4. Step 4: Simplify right side
    54,144.13x = 2,352,143,902.31
  5. Step 5: Solve for x
    x = 2,352,143,902.31/54,144.13
  6. Step 6: Final answer
    x = 43,442.27

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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.