Home / 89,890.20-134,873.10-48,288.60

Finding the Fourth Proportional to 89,890.20, 134,873.10 and 48,288.60

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Solution

The fourth proportional to 89,890.20, 134,873.10 and 48,288.60 is: 72,453.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,890.20 : 134,873.10 = 48,288.60 : x
  2. Step 2: Convert to fraction form
    89,890.20/134,873.10 = 48,288.60/x
  3. Step 3: Cross multiply
    89,890.20x = 134,873.10 × 48,288.60
  4. Step 4: Simplify right side
    89,890.20x = 6,512,833,176.66
  5. Step 5: Solve for x
    x = 6,512,833,176.66/89,890.20
  6. Step 6: Final answer
    x = 72,453.21

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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.