Home / 86,729.12-130,114.26-27,564.83

Finding the Fourth Proportional to 86,729.12, 130,114.26 and 27,564.83

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Solution

The fourth proportional to 86,729.12, 130,114.26 and 27,564.83 is: 41,353.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,729.12 : 130,114.26 = 27,564.83 : x
  2. Step 2: Convert to fraction form
    86,729.12/130,114.26 = 27,564.83/x
  3. Step 3: Cross multiply
    86,729.12x = 130,114.26 × 27,564.83
  4. Step 4: Simplify right side
    86,729.12x = 3,586,576,806.90
  5. Step 5: Solve for x
    x = 3,586,576,806.90/86,729.12
  6. Step 6: Final answer
    x = 41,353.78

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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.