Home / 89,537.20-134,190.60-54,439.60

Finding the Fourth Proportional to 89,537.20, 134,190.60 and 54,439.60

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Solution

The fourth proportional to 89,537.20, 134,190.60 and 54,439.60 is: 81,589.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,537.20 : 134,190.60 = 54,439.60 : x
  2. Step 2: Convert to fraction form
    89,537.20/134,190.60 = 54,439.60/x
  3. Step 3: Cross multiply
    89,537.20x = 134,190.60 × 54,439.60
  4. Step 4: Simplify right side
    89,537.20x = 7,305,282,587.76
  5. Step 5: Solve for x
    x = 7,305,282,587.76/89,537.20
  6. Step 6: Final answer
    x = 81,589.36

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1.5x scale

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.