Home / 83,486.20-115,217.18-51,673.60

Finding the Fourth Proportional to 83,486.20, 115,217.18 and 51,673.60

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Solution

The fourth proportional to 83,486.20, 115,217.18 and 51,673.60 is: 71,313.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,486.20 : 115,217.18 = 51,673.60 : x
  2. Step 2: Convert to fraction form
    83,486.20/115,217.18 = 51,673.60/x
  3. Step 3: Cross multiply
    83,486.20x = 115,217.18 × 51,673.60
  4. Step 4: Simplify right side
    83,486.20x = 5,953,686,472.45
  5. Step 5: Solve for x
    x = 5,953,686,472.45/83,486.20
  6. Step 6: Final answer
    x = 71,313.42

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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.