Home / 55,151.68-76,109.76-30,001.12

Finding the Fourth Proportional to 55,151.68, 76,109.76 and 30,001.12

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Solution

The fourth proportional to 55,151.68, 76,109.76 and 30,001.12 is: 41,401.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,151.68 : 76,109.76 = 30,001.12 : x
  2. Step 2: Convert to fraction form
    55,151.68/76,109.76 = 30,001.12/x
  3. Step 3: Cross multiply
    55,151.68x = 76,109.76 × 30,001.12
  4. Step 4: Simplify right side
    55,151.68x = 2,283,378,042.93
  5. Step 5: Solve for x
    x = 2,283,378,042.93/55,151.68
  6. Step 6: Final answer
    x = 41,401.79

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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.