Home / 90,467.20-135,603.60-34,285.60

Finding the Fourth Proportional to 90,467.20, 135,603.60 and 34,285.60

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Solution

The fourth proportional to 90,467.20, 135,603.60 and 34,285.60 is: 51,391.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,467.20 : 135,603.60 = 34,285.60 : x
  2. Step 2: Convert to fraction form
    90,467.20/135,603.60 = 34,285.60/x
  3. Step 3: Cross multiply
    90,467.20x = 135,603.60 × 34,285.60
  4. Step 4: Simplify right side
    90,467.20x = 4,649,250,788.16
  5. Step 5: Solve for x
    x = 4,649,250,788.16/90,467.20
  6. Step 6: Final answer
    x = 51,391.56

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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.