Home / 83,771.64-115,722.53-76,204.62

Finding the Fourth Proportional to 83,771.64, 115,722.53 and 76,204.62

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Solution

The fourth proportional to 83,771.64, 115,722.53 and 76,204.62 is: 105,269.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,771.64 : 115,722.53 = 76,204.62 : x
  2. Step 2: Convert to fraction form
    83,771.64/115,722.53 = 76,204.62/x
  3. Step 3: Cross multiply
    83,771.64x = 115,722.53 × 76,204.62
  4. Step 4: Simplify right side
    83,771.64x = 8,818,591,424.09
  5. Step 5: Solve for x
    x = 8,818,591,424.09/83,771.64
  6. Step 6: Final answer
    x = 105,269.41

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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.