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Finding the Fourth Proportional to 75,119.37, 103,664.50 and 43,288.20

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Solution

The fourth proportional to 75,119.37, 103,664.50 and 43,288.20 is: 59,737.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,119.37 : 103,664.50 = 43,288.20 : x
  2. Step 2: Convert to fraction form
    75,119.37/103,664.50 = 43,288.20/x
  3. Step 3: Cross multiply
    75,119.37x = 103,664.50 × 43,288.20
  4. Step 4: Simplify right side
    75,119.37x = 4,487,449,608.90
  5. Step 5: Solve for x
    x = 4,487,449,608.90/75,119.37
  6. Step 6: Final answer
    x = 59,737.58

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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.