Home / 87,183.28-120,281.95-56,986.01

Finding the Fourth Proportional to 87,183.28, 120,281.95 and 56,986.01

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Solution

The fourth proportional to 87,183.28, 120,281.95 and 56,986.01 is: 78,620.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,183.28 : 120,281.95 = 56,986.01 : x
  2. Step 2: Convert to fraction form
    87,183.28/120,281.95 = 56,986.01/x
  3. Step 3: Cross multiply
    87,183.28x = 120,281.95 × 56,986.01
  4. Step 4: Simplify right side
    87,183.28x = 6,854,387,661.64
  5. Step 5: Solve for x
    x = 6,854,387,661.64/87,183.28
  6. Step 6: Final answer
    x = 78,620.44

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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.