Home / 55,918.11-77,195.57-43,142.61

Finding the Fourth Proportional to 55,918.11, 77,195.57 and 43,142.61

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Solution

The fourth proportional to 55,918.11, 77,195.57 and 43,142.61 is: 59,558.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,918.11 : 77,195.57 = 43,142.61 : x
  2. Step 2: Convert to fraction form
    55,918.11/77,195.57 = 43,142.61/x
  3. Step 3: Cross multiply
    55,918.11x = 77,195.57 × 43,142.61
  4. Step 4: Simplify right side
    55,918.11x = 3,330,418,154.52
  5. Step 5: Solve for x
    x = 3,330,418,154.52/55,918.11
  6. Step 6: Final answer
    x = 59,558.85

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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.