Home / 89,255.20-133,879.28-30,089.52

Finding the Fourth Proportional to 89,255.20, 133,879.28 and 30,089.52

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Solution

The fourth proportional to 89,255.20, 133,879.28 and 30,089.52 is: 45,133.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,255.20 : 133,879.28 = 30,089.52 : x
  2. Step 2: Convert to fraction form
    89,255.20/133,879.28 = 30,089.52/x
  3. Step 3: Cross multiply
    89,255.20x = 133,879.28 × 30,089.52
  4. Step 4: Simplify right side
    89,255.20x = 4,028,363,273.15
  5. Step 5: Solve for x
    x = 4,028,363,273.15/89,255.20
  6. Step 6: Final answer
    x = 45,133.09

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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.