Home / 55,058.13-75,907.91-39,731.81

Finding the Fourth Proportional to 55,058.13, 75,907.91 and 39,731.81

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Solution

The fourth proportional to 55,058.13, 75,907.91 and 39,731.81 is: 54,777.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,058.13 : 75,907.91 = 39,731.81 : x
  2. Step 2: Convert to fraction form
    55,058.13/75,907.91 = 39,731.81/x
  3. Step 3: Cross multiply
    55,058.13x = 75,907.91 × 39,731.81
  4. Step 4: Simplify right side
    55,058.13x = 3,015,958,377.41
  5. Step 5: Solve for x
    x = 3,015,958,377.41/55,058.13
  6. Step 6: Final answer
    x = 54,777.71

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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.