Home / 83,645.28-115,429.05-45,919.26

Finding the Fourth Proportional to 83,645.28, 115,429.05 and 45,919.26

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Solution

The fourth proportional to 83,645.28, 115,429.05 and 45,919.26 is: 63,367.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,645.28 : 115,429.05 = 45,919.26 : x
  2. Step 2: Convert to fraction form
    83,645.28/115,429.05 = 45,919.26/x
  3. Step 3: Cross multiply
    83,645.28x = 115,429.05 × 45,919.26
  4. Step 4: Simplify right side
    83,645.28x = 5,300,416,558.50
  5. Step 5: Solve for x
    x = 5,300,416,558.50/83,645.28
  6. Step 6: Final answer
    x = 63,367.79

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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.