Home / 89,173.20-122,958.24-56,864.64

Finding the Fourth Proportional to 89,173.20, 122,958.24 and 56,864.64

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Solution

The fourth proportional to 89,173.20, 122,958.24 and 56,864.64 is: 78,408.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,173.20 : 122,958.24 = 56,864.64 : x
  2. Step 2: Convert to fraction form
    89,173.20/122,958.24 = 56,864.64/x
  3. Step 3: Cross multiply
    89,173.20x = 122,958.24 × 56,864.64
  4. Step 4: Simplify right side
    89,173.20x = 6,991,976,052.63
  5. Step 5: Solve for x
    x = 6,991,976,052.63/89,173.20
  6. Step 6: Final answer
    x = 78,408.94

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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.