Home / 55,615.28-76,749.17-30,121.70

Finding the Fourth Proportional to 55,615.28, 76,749.17 and 30,121.70

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Solution

The fourth proportional to 55,615.28, 76,749.17 and 30,121.70 is: 41,567.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,615.28 : 76,749.17 = 30,121.70 : x
  2. Step 2: Convert to fraction form
    55,615.28/76,749.17 = 30,121.70/x
  3. Step 3: Cross multiply
    55,615.28x = 76,749.17 × 30,121.70
  4. Step 4: Simplify right side
    55,615.28x = 2,311,815,324.93
  5. Step 5: Solve for x
    x = 2,311,815,324.93/55,615.28
  6. Step 6: Final answer
    x = 41,567.99

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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.