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Finding the Fourth Proportional to 76,890.62, 106,109.07 and 43,356.62

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Solution

The fourth proportional to 76,890.62, 106,109.07 and 43,356.62 is: 59,832.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,890.62 : 106,109.07 = 43,356.62 : x
  2. Step 2: Convert to fraction form
    76,890.62/106,109.07 = 43,356.62/x
  3. Step 3: Cross multiply
    76,890.62x = 106,109.07 × 43,356.62
  4. Step 4: Simplify right side
    76,890.62x = 4,600,530,626.54
  5. Step 5: Solve for x
    x = 4,600,530,626.54/76,890.62
  6. Step 6: Final answer
    x = 59,832.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.