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Finding the Fourth Proportional to 79,019.52, 109,057.19 and 45,040.22

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Solution

The fourth proportional to 79,019.52, 109,057.19 and 45,040.22 is: 62,161.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,019.52 : 109,057.19 = 45,040.22 : x
  2. Step 2: Convert to fraction form
    79,019.52/109,057.19 = 45,040.22/x
  3. Step 3: Cross multiply
    79,019.52x = 109,057.19 × 45,040.22
  4. Step 4: Simplify right side
    79,019.52x = 4,911,959,059.69
  5. Step 5: Solve for x
    x = 4,911,959,059.69/79,019.52
  6. Step 6: Final answer
    x = 62,161.34

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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.