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Finding the Fourth Proportional to 103,711, 155,566.50 and 29,839

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Solution

The fourth proportional to 103,711, 155,566.50 and 29,839 is: 44,758.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,711 : 155,566.50 = 29,839 : x
  2. Step 2: Convert to fraction form
    103,711/155,566.50 = 29,839/x
  3. Step 3: Cross multiply
    103,711x = 155,566.50 × 29,839
  4. Step 4: Simplify right side
    103,711x = 4,641,948,793.50
  5. Step 5: Solve for x
    x = 4,641,948,793.50/103,711
  6. Step 6: Final answer
    x = 44,758.50

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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.