Home / 55,761.20-76,946.96-30,610.56

Finding the Fourth Proportional to 55,761.20, 76,946.96 and 30,610.56

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Solution

The fourth proportional to 55,761.20, 76,946.96 and 30,610.56 is: 42,240.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,761.20 : 76,946.96 = 30,610.56 : x
  2. Step 2: Convert to fraction form
    55,761.20/76,946.96 = 30,610.56/x
  3. Step 3: Cross multiply
    55,761.20x = 76,946.96 × 30,610.56
  4. Step 4: Simplify right side
    55,761.20x = 2,355,389,535.90
  5. Step 5: Solve for x
    x = 2,355,389,535.90/55,761.20
  6. Step 6: Final answer
    x = 42,240.65

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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.