Home / 71,780.05-107,590.79-29,636.90

Finding the Fourth Proportional to 71,780.05, 107,590.79 and 29,636.90

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Solution

The fourth proportional to 71,780.05, 107,590.79 and 29,636.90 is: 44,422.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,780.05 : 107,590.79 = 29,636.90 : x
  2. Step 2: Convert to fraction form
    71,780.05/107,590.79 = 29,636.90/x
  3. Step 3: Cross multiply
    71,780.05x = 107,590.79 × 29,636.90
  4. Step 4: Simplify right side
    71,780.05x = 3,188,657,484.15
  5. Step 5: Solve for x
    x = 3,188,657,484.15/71,780.05
  6. Step 6: Final answer
    x = 44,422.61

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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.