Home / 87,613.60-131,485.20-58,021.60

Finding the Fourth Proportional to 87,613.60, 131,485.20 and 58,021.60

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Solution

The fourth proportional to 87,613.60, 131,485.20 and 58,021.60 is: 87,075.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,613.60 : 131,485.20 = 58,021.60 : x
  2. Step 2: Convert to fraction form
    87,613.60/131,485.20 = 58,021.60/x
  3. Step 3: Cross multiply
    87,613.60x = 131,485.20 × 58,021.60
  4. Step 4: Simplify right side
    87,613.60x = 7,628,981,680.32
  5. Step 5: Solve for x
    x = 7,628,981,680.32/87,613.60
  6. Step 6: Final answer
    x = 87,075.31

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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.