Home / 87,588.25-120,871.78-47,302.01

Finding the Fourth Proportional to 87,588.25, 120,871.78 and 47,302.01

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Solution

The fourth proportional to 87,588.25, 120,871.78 and 47,302.01 is: 65,276.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,588.25 : 120,871.78 = 47,302.01 : x
  2. Step 2: Convert to fraction form
    87,588.25/120,871.78 = 47,302.01/x
  3. Step 3: Cross multiply
    87,588.25x = 120,871.78 × 47,302.01
  4. Step 4: Simplify right side
    87,588.25x = 5,717,477,305.41
  5. Step 5: Solve for x
    x = 5,717,477,305.41/87,588.25
  6. Step 6: Final answer
    x = 65,276.76

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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.