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Finding the Fourth Proportional to 54,895, 75,797.76 and 42,127.96

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Solution

The fourth proportional to 54,895, 75,797.76 and 42,127.96 is: 58,169.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,895 : 75,797.76 = 42,127.96 : x
  2. Step 2: Convert to fraction form
    54,895/75,797.76 = 42,127.96/x
  3. Step 3: Cross multiply
    54,895x = 75,797.76 × 42,127.96
  4. Step 4: Simplify right side
    54,895x = 3,193,205,001.37
  5. Step 5: Solve for x
    x = 3,193,205,001.37/54,895
  6. Step 6: Final answer
    x = 58,169.32

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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.