Home / 86,551.72-129,841.04-27,381.76

Finding the Fourth Proportional to 86,551.72, 129,841.04 and 27,381.76

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Solution

The fourth proportional to 86,551.72, 129,841.04 and 27,381.76 is: 41,076.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,551.72 : 129,841.04 = 27,381.76 : x
  2. Step 2: Convert to fraction form
    86,551.72/129,841.04 = 27,381.76/x
  3. Step 3: Cross multiply
    86,551.72x = 129,841.04 × 27,381.76
  4. Step 4: Simplify right side
    86,551.72x = 3,555,276,195.43
  5. Step 5: Solve for x
    x = 3,555,276,195.43/86,551.72
  6. Step 6: Final answer
    x = 41,076.90

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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.