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Finding the Fourth Proportional to 84,771.77, 127,136.39 and 34,865.64

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Solution

The fourth proportional to 84,771.77, 127,136.39 and 34,865.64 is: 52,289.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,771.77 : 127,136.39 = 34,865.64 : x
  2. Step 2: Convert to fraction form
    84,771.77/127,136.39 = 34,865.64/x
  3. Step 3: Cross multiply
    84,771.77x = 127,136.39 × 34,865.64
  4. Step 4: Simplify right side
    84,771.77x = 4,432,691,430.31
  5. Step 5: Solve for x
    x = 4,432,691,430.31/84,771.77
  6. Step 6: Final answer
    x = 52,289.71

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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.