Home / 80,951.38-111,662.40-52,260.01

Finding the Fourth Proportional to 80,951.38, 111,662.40 and 52,260.01

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Solution

The fourth proportional to 80,951.38, 111,662.40 and 52,260.01 is: 72,086.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,951.38 : 111,662.40 = 52,260.01 : x
  2. Step 2: Convert to fraction form
    80,951.38/111,662.40 = 52,260.01/x
  3. Step 3: Cross multiply
    80,951.38x = 111,662.40 × 52,260.01
  4. Step 4: Simplify right side
    80,951.38x = 5,835,478,140.62
  5. Step 5: Solve for x
    x = 5,835,478,140.62/80,951.38
  6. Step 6: Final answer
    x = 72,086.21

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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.