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Finding the Fourth Proportional to 75,099.53, 103,660.41 and 43,289.60

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Solution

The fourth proportional to 75,099.53, 103,660.41 and 43,289.60 is: 59,752.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,099.53 : 103,660.41 = 43,289.60 : x
  2. Step 2: Convert to fraction form
    75,099.53/103,660.41 = 43,289.60/x
  3. Step 3: Cross multiply
    75,099.53x = 103,660.41 × 43,289.60
  4. Step 4: Simplify right side
    75,099.53x = 4,487,417,684.74
  5. Step 5: Solve for x
    x = 4,487,417,684.74/75,099.53
  6. Step 6: Final answer
    x = 59,752.94

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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.