Home / 55,615.07-76,748.76-30,121.43

Finding the Fourth Proportional to 55,615.07, 76,748.76 and 30,121.43

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Solution

The fourth proportional to 55,615.07, 76,748.76 and 30,121.43 is: 41,567.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,615.07 : 76,748.76 = 30,121.43 : x
  2. Step 2: Convert to fraction form
    55,615.07/76,748.76 = 30,121.43/x
  3. Step 3: Cross multiply
    55,615.07x = 76,748.76 × 30,121.43
  4. Step 4: Simplify right side
    55,615.07x = 2,311,782,401.93
  5. Step 5: Solve for x
    x = 2,311,782,401.93/55,615.07
  6. Step 6: Final answer
    x = 41,567.56

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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.