Home / 88,287-121,835.46-48,000.75

Finding the Fourth Proportional to 88,287, 121,835.46 and 48,000.75

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Solution

The fourth proportional to 88,287, 121,835.46 and 48,000.75 is: 66,240.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,287 : 121,835.46 = 48,000.75 : x
  2. Step 2: Convert to fraction form
    88,287/121,835.46 = 48,000.75/x
  3. Step 3: Cross multiply
    88,287x = 121,835.46 × 48,000.75
  4. Step 4: Simplify right side
    88,287x = 5,848,193,456.60
  5. Step 5: Solve for x
    x = 5,848,193,456.60/88,287
  6. Step 6: Final answer
    x = 66,240.71

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.