Home / 86,633.40-129,993.30-49,222.20

Finding the Fourth Proportional to 86,633.40, 129,993.30 and 49,222.20

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Solution

The fourth proportional to 86,633.40, 129,993.30 and 49,222.20 is: 73,857.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,633.40 : 129,993.30 = 49,222.20 : x
  2. Step 2: Convert to fraction form
    86,633.40/129,993.30 = 49,222.20/x
  3. Step 3: Cross multiply
    86,633.40x = 129,993.30 × 49,222.20
  4. Step 4: Simplify right side
    86,633.40x = 6,398,556,211.26
  5. Step 5: Solve for x
    x = 6,398,556,211.26/86,633.40
  6. Step 6: Final answer
    x = 73,857.84

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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.