Home / 55,128.87-76,077.75-33,618.57

Finding the Fourth Proportional to 55,128.87, 76,077.75 and 33,618.57

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Solution

The fourth proportional to 55,128.87, 76,077.75 and 33,618.57 is: 46,393.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,128.87 : 76,077.75 = 33,618.57 : x
  2. Step 2: Convert to fraction form
    55,128.87/76,077.75 = 33,618.57/x
  3. Step 3: Cross multiply
    55,128.87x = 76,077.75 × 33,618.57
  4. Step 4: Simplify right side
    55,128.87x = 2,557,625,163.82
  5. Step 5: Solve for x
    x = 2,557,625,163.82/55,128.87
  6. Step 6: Final answer
    x = 46,393.57

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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.