Home / 87,052.03-120,087.58-56,855.04

Finding the Fourth Proportional to 87,052.03, 120,087.58 and 56,855.04

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Solution

The fourth proportional to 87,052.03, 120,087.58 and 56,855.04 is: 78,431.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,052.03 : 120,087.58 = 56,855.04 : x
  2. Step 2: Convert to fraction form
    87,052.03/120,087.58 = 56,855.04/x
  3. Step 3: Cross multiply
    87,052.03x = 120,087.58 × 56,855.04
  4. Step 4: Simplify right side
    87,052.03x = 6,827,584,164.40
  5. Step 5: Solve for x
    x = 6,827,584,164.40/87,052.03
  6. Step 6: Final answer
    x = 78,431.07

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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.