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Finding the Fourth Proportional to 80,088.48, 120,016.08 and 38,486.88

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Solution

The fourth proportional to 80,088.48, 120,016.08 and 38,486.88 is: 57,674.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,088.48 : 120,016.08 = 38,486.88 : x
  2. Step 2: Convert to fraction form
    80,088.48/120,016.08 = 38,486.88/x
  3. Step 3: Cross multiply
    80,088.48x = 120,016.08 × 38,486.88
  4. Step 4: Simplify right side
    80,088.48x = 4,619,044,469.03
  5. Step 5: Solve for x
    x = 4,619,044,469.03/80,088.48
  6. Step 6: Final answer
    x = 57,674.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.