Home / 86,815.70-130,223.55-34,198.10

Finding the Fourth Proportional to 86,815.70, 130,223.55 and 34,198.10

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Solution

The fourth proportional to 86,815.70, 130,223.55 and 34,198.10 is: 51,297.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,815.70 : 130,223.55 = 34,198.10 : x
  2. Step 2: Convert to fraction form
    86,815.70/130,223.55 = 34,198.10/x
  3. Step 3: Cross multiply
    86,815.70x = 130,223.55 × 34,198.10
  4. Step 4: Simplify right side
    86,815.70x = 4,453,397,985.26
  5. Step 5: Solve for x
    x = 4,453,397,985.26/86,815.70
  6. Step 6: Final answer
    x = 51,297.15

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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.