Home / 54,120.99-74,687.28-31,460.43

Finding the Fourth Proportional to 54,120.99, 74,687.28 and 31,460.43

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Solution

The fourth proportional to 54,120.99, 74,687.28 and 31,460.43 is: 43,415.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,120.99 : 74,687.28 = 31,460.43 : x
  2. Step 2: Convert to fraction form
    54,120.99/74,687.28 = 31,460.43/x
  3. Step 3: Cross multiply
    54,120.99x = 74,687.28 × 31,460.43
  4. Step 4: Simplify right side
    54,120.99x = 2,349,693,944.33
  5. Step 5: Solve for x
    x = 2,349,693,944.33/54,120.99
  6. Step 6: Final answer
    x = 43,415.58

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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.