Home / 55,190.88-76,163.52-30,040.32

Finding the Fourth Proportional to 55,190.88, 76,163.52 and 30,040.32

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Solution

The fourth proportional to 55,190.88, 76,163.52 and 30,040.32 is: 41,455.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,190.88 : 76,163.52 = 30,040.32 : x
  2. Step 2: Convert to fraction form
    55,190.88/76,163.52 = 30,040.32/x
  3. Step 3: Cross multiply
    55,190.88x = 76,163.52 × 30,040.32
  4. Step 4: Simplify right side
    55,190.88x = 2,287,976,513.13
  5. Step 5: Solve for x
    x = 2,287,976,513.13/55,190.88
  6. Step 6: Final answer
    x = 41,455.70

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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.