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Finding the Fourth Proportional to 84,764.70, 127,188.36 and 34,859.79

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Solution

The fourth proportional to 84,764.70, 127,188.36 and 34,859.79 is: 52,306.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,764.70 : 127,188.36 = 34,859.79 : x
  2. Step 2: Convert to fraction form
    84,764.70/127,188.36 = 34,859.79/x
  3. Step 3: Cross multiply
    84,764.70x = 127,188.36 × 34,859.79
  4. Step 4: Simplify right side
    84,764.70x = 4,433,759,520.04
  5. Step 5: Solve for x
    x = 4,433,759,520.04/84,764.70
  6. Step 6: Final answer
    x = 52,306.67

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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.