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Finding the Fourth Proportional to 79,486, 119,283.69 and 32,738.89

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Solution

The fourth proportional to 79,486, 119,283.69 and 32,738.89 is: 49,130.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,486 : 119,283.69 = 32,738.89 : x
  2. Step 2: Convert to fraction form
    79,486/119,283.69 = 32,738.89/x
  3. Step 3: Cross multiply
    79,486x = 119,283.69 × 32,738.89
  4. Step 4: Simplify right side
    79,486x = 3,905,215,605.70
  5. Step 5: Solve for x
    x = 3,905,215,605.70/79,486
  6. Step 6: Final answer
    x = 49,130.86

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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.