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Finding the Fourth Proportional to 77,158.62, 115,736.58 and 41,636.34

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Solution

The fourth proportional to 77,158.62, 115,736.58 and 41,636.34 is: 62,453.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,158.62 : 115,736.58 = 41,636.34 : x
  2. Step 2: Convert to fraction form
    77,158.62/115,736.58 = 41,636.34/x
  3. Step 3: Cross multiply
    77,158.62x = 115,736.58 × 41,636.34
  4. Step 4: Simplify right side
    77,158.62x = 4,818,847,595.32
  5. Step 5: Solve for x
    x = 4,818,847,595.32/77,158.62
  6. Step 6: Final answer
    x = 62,453.78

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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.