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Finding the Fourth Proportional to 64,579.53, 89,150.02 and 43,105.54

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Solution

The fourth proportional to 64,579.53, 89,150.02 and 43,105.54 is: 59,505.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,579.53 : 89,150.02 = 43,105.54 : x
  2. Step 2: Convert to fraction form
    64,579.53/89,150.02 = 43,105.54/x
  3. Step 3: Cross multiply
    64,579.53x = 89,150.02 × 43,105.54
  4. Step 4: Simplify right side
    64,579.53x = 3,842,859,840.36
  5. Step 5: Solve for x
    x = 3,842,859,840.36/64,579.53
  6. Step 6: Final answer
    x = 59,505.85

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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.