Home / 75,438.72-104,108.16-43,617.60

Finding the Fourth Proportional to 75,438.72, 104,108.16 and 43,617.60

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Solution

The fourth proportional to 75,438.72, 104,108.16 and 43,617.60 is: 60,193.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,438.72 : 104,108.16 = 43,617.60 : x
  2. Step 2: Convert to fraction form
    75,438.72/104,108.16 = 43,617.60/x
  3. Step 3: Cross multiply
    75,438.72x = 104,108.16 × 43,617.60
  4. Step 4: Simplify right side
    75,438.72x = 4,540,948,079.62
  5. Step 5: Solve for x
    x = 4,540,948,079.62/75,438.72
  6. Step 6: Final answer
    x = 60,193.86

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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.