Home / 55,755.36-76,907.40-33,078.30

Finding the Fourth Proportional to 55,755.36, 76,907.40 and 33,078.30

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Solution

The fourth proportional to 55,755.36, 76,907.40 and 33,078.30 is: 45,627.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,755.36 : 76,907.40 = 33,078.30 : x
  2. Step 2: Convert to fraction form
    55,755.36/76,907.40 = 33,078.30/x
  3. Step 3: Cross multiply
    55,755.36x = 76,907.40 × 33,078.30
  4. Step 4: Simplify right side
    55,755.36x = 2,543,965,499.49
  5. Step 5: Solve for x
    x = 2,543,965,499.49/55,755.36
  6. Step 6: Final answer
    x = 45,627.29

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1.5x scale

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.