Home / 83,441.28-115,157.22-47,636.69

Finding the Fourth Proportional to 83,441.28, 115,157.22 and 47,636.69

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Solution

The fourth proportional to 83,441.28, 115,157.22 and 47,636.69 is: 65,743.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,441.28 : 115,157.22 = 47,636.69 : x
  2. Step 2: Convert to fraction form
    83,441.28/115,157.22 = 47,636.69/x
  3. Step 3: Cross multiply
    83,441.28x = 115,157.22 × 47,636.69
  4. Step 4: Simplify right side
    83,441.28x = 5,485,708,790.40
  5. Step 5: Solve for x
    x = 5,485,708,790.40/83,441.28
  6. Step 6: Final answer
    x = 65,743.34

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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.