Home / 86,794.11-130,167-30,626.91

Finding the Fourth Proportional to 86,794.11, 130,167 and 30,626.91

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Solution

The fourth proportional to 86,794.11, 130,167 and 30,626.91 is: 45,931.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,794.11 : 130,167 = 30,626.91 : x
  2. Step 2: Convert to fraction form
    86,794.11/130,167 = 30,626.91/x
  3. Step 3: Cross multiply
    86,794.11x = 130,167 × 30,626.91
  4. Step 4: Simplify right side
    86,794.11x = 3,986,612,993.97
  5. Step 5: Solve for x
    x = 3,986,612,993.97/86,794.11
  6. Step 6: Final answer
    x = 45,931.84

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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.