Home / 55,190.92-76,157.22-31,311.40

Finding the Fourth Proportional to 55,190.92, 76,157.22 and 31,311.40

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Solution

The fourth proportional to 55,190.92, 76,157.22 and 31,311.40 is: 43,206.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,190.92 : 76,157.22 = 31,311.40 : x
  2. Step 2: Convert to fraction form
    55,190.92/76,157.22 = 31,311.40/x
  3. Step 3: Cross multiply
    55,190.92x = 76,157.22 × 31,311.40
  4. Step 4: Simplify right side
    55,190.92x = 2,384,589,178.31
  5. Step 5: Solve for x
    x = 2,384,589,178.31/55,190.92
  6. Step 6: Final answer
    x = 43,206.19

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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.