Home / 86,812.40-130,194.30-27,666.20

Finding the Fourth Proportional to 86,812.40, 130,194.30 and 27,666.20

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Solution

The fourth proportional to 86,812.40, 130,194.30 and 27,666.20 is: 41,491.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,812.40 : 130,194.30 = 27,666.20 : x
  2. Step 2: Convert to fraction form
    86,812.40/130,194.30 = 27,666.20/x
  3. Step 3: Cross multiply
    86,812.40x = 130,194.30 × 27,666.20
  4. Step 4: Simplify right side
    86,812.40x = 3,601,981,542.66
  5. Step 5: Solve for x
    x = 3,601,981,542.66/86,812.40
  6. Step 6: Final answer
    x = 41,491.56

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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.