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Finding the Fourth Proportional to 84,818.60, 127,227.90 and 82,850.30

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Solution

The fourth proportional to 84,818.60, 127,227.90 and 82,850.30 is: 124,275.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,818.60 : 127,227.90 = 82,850.30 : x
  2. Step 2: Convert to fraction form
    84,818.60/127,227.90 = 82,850.30/x
  3. Step 3: Cross multiply
    84,818.60x = 127,227.90 × 82,850.30
  4. Step 4: Simplify right side
    84,818.60x = 10,540,869,683.37
  5. Step 5: Solve for x
    x = 10,540,869,683.37/84,818.60
  6. Step 6: Final answer
    x = 124,275.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.