Home / 54,869.48-75,726.05-30,997.70

Finding the Fourth Proportional to 54,869.48, 75,726.05 and 30,997.70

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Solution

The fourth proportional to 54,869.48, 75,726.05 and 30,997.70 is: 42,780.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,869.48 : 75,726.05 = 30,997.70 : x
  2. Step 2: Convert to fraction form
    54,869.48/75,726.05 = 30,997.70/x
  3. Step 3: Cross multiply
    54,869.48x = 75,726.05 × 30,997.70
  4. Step 4: Simplify right side
    54,869.48x = 2,347,333,380.09
  5. Step 5: Solve for x
    x = 2,347,333,380.09/54,869.48
  6. Step 6: Final answer
    x = 42,780.31

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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.