Home / 86,297.36-129,446.04-27,138.20

Finding the Fourth Proportional to 86,297.36, 129,446.04 and 27,138.20

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Solution

The fourth proportional to 86,297.36, 129,446.04 and 27,138.20 is: 40,707.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,297.36 : 129,446.04 = 27,138.20 : x
  2. Step 2: Convert to fraction form
    86,297.36/129,446.04 = 27,138.20/x
  3. Step 3: Cross multiply
    86,297.36x = 129,446.04 × 27,138.20
  4. Step 4: Simplify right side
    86,297.36x = 3,512,932,522.73
  5. Step 5: Solve for x
    x = 3,512,932,522.73/86,297.36
  6. Step 6: Final answer
    x = 40,707.30

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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.