Home / 86,520.84-129,786.39-24,191.34

Finding the Fourth Proportional to 86,520.84, 129,786.39 and 24,191.34

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Solution

The fourth proportional to 86,520.84, 129,786.39 and 24,191.34 is: 36,288.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,520.84 : 129,786.39 = 24,191.34 : x
  2. Step 2: Convert to fraction form
    86,520.84/129,786.39 = 24,191.34/x
  3. Step 3: Cross multiply
    86,520.84x = 129,786.39 × 24,191.34
  4. Step 4: Simplify right side
    86,520.84x = 3,139,706,687.86
  5. Step 5: Solve for x
    x = 3,139,706,687.86/86,520.84
  6. Step 6: Final answer
    x = 36,288.44

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Double scale
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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.