Home / 96,857.20-133,665.40-53,249.21

Finding the Fourth Proportional to 96,857.20, 133,665.40 and 53,249.21

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Solution

The fourth proportional to 96,857.20, 133,665.40 and 53,249.21 is: 73,485.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,857.20 : 133,665.40 = 53,249.21 : x
  2. Step 2: Convert to fraction form
    96,857.20/133,665.40 = 53,249.21/x
  3. Step 3: Cross multiply
    96,857.20x = 133,665.40 × 53,249.21
  4. Step 4: Simplify right side
    96,857.20x = 7,117,577,588.70
  5. Step 5: Solve for x
    x = 7,117,577,588.70/96,857.20
  6. Step 6: Final answer
    x = 73,485.27

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Half scale
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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.