Home / 115,329.20-172,961.40-36,467.60

Finding the Fourth Proportional to 115,329.20, 172,961.40 and 36,467.60

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Solution

The fourth proportional to 115,329.20, 172,961.40 and 36,467.60 is: 54,691.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,329.20 : 172,961.40 = 36,467.60 : x
  2. Step 2: Convert to fraction form
    115,329.20/172,961.40 = 36,467.60/x
  3. Step 3: Cross multiply
    115,329.20x = 172,961.40 × 36,467.60
  4. Step 4: Simplify right side
    115,329.20x = 6,307,487,150.64
  5. Step 5: Solve for x
    x = 6,307,487,150.64/115,329.20
  6. Step 6: Final answer
    x = 54,691.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.