Home / 83,519.62-115,255.66-47,220.47

Finding the Fourth Proportional to 83,519.62, 115,255.66 and 47,220.47

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Solution

The fourth proportional to 83,519.62, 115,255.66 and 47,220.47 is: 65,163.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,519.62 : 115,255.66 = 47,220.47 : x
  2. Step 2: Convert to fraction form
    83,519.62/115,255.66 = 47,220.47/x
  3. Step 3: Cross multiply
    83,519.62x = 115,255.66 × 47,220.47
  4. Step 4: Simplify right side
    83,519.62x = 5,442,426,261.78
  5. Step 5: Solve for x
    x = 5,442,426,261.78/83,519.62
  6. Step 6: Final answer
    x = 65,163.45

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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.