Home / 54,911.36-75,773.12-31,036.80

Finding the Fourth Proportional to 54,911.36, 75,773.12 and 31,036.80

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Solution

The fourth proportional to 54,911.36, 75,773.12 and 31,036.80 is: 42,828.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,911.36 : 75,773.12 = 31,036.80 : x
  2. Step 2: Convert to fraction form
    54,911.36/75,773.12 = 31,036.80/x
  3. Step 3: Cross multiply
    54,911.36x = 75,773.12 × 31,036.80
  4. Step 4: Simplify right side
    54,911.36x = 2,351,755,170.82
  5. Step 5: Solve for x
    x = 2,351,755,170.82/54,911.36
  6. Step 6: Final answer
    x = 42,828.21

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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.