Home / 83,406.22-115,100.81-45,166.21

Finding the Fourth Proportional to 83,406.22, 115,100.81 and 45,166.21

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Solution

The fourth proportional to 83,406.22, 115,100.81 and 45,166.21 is: 62,329.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,406.22 : 115,100.81 = 45,166.21 : x
  2. Step 2: Convert to fraction form
    83,406.22/115,100.81 = 45,166.21/x
  3. Step 3: Cross multiply
    83,406.22x = 115,100.81 × 45,166.21
  4. Step 4: Simplify right side
    83,406.22x = 5,198,667,129.80
  5. Step 5: Solve for x
    x = 5,198,667,129.80/83,406.22
  6. Step 6: Final answer
    x = 62,329.49

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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.