Home / 87,276.08-120,431.61-58,589.93

Finding the Fourth Proportional to 87,276.08, 120,431.61 and 58,589.93

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Solution

The fourth proportional to 87,276.08, 120,431.61 and 58,589.93 is: 80,847.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,276.08 : 120,431.61 = 58,589.93 : x
  2. Step 2: Convert to fraction form
    87,276.08/120,431.61 = 58,589.93/x
  3. Step 3: Cross multiply
    87,276.08x = 120,431.61 × 58,589.93
  4. Step 4: Simplify right side
    87,276.08x = 7,056,079,900.77
  5. Step 5: Solve for x
    x = 7,056,079,900.77/87,276.08
  6. Step 6: Final answer
    x = 80,847.81

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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.