Home / 71,325.24-106,987.75-21,405.26

Finding the Fourth Proportional to 71,325.24, 106,987.75 and 21,405.26

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Solution

The fourth proportional to 71,325.24, 106,987.75 and 21,405.26 is: 32,107.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,325.24 : 106,987.75 = 21,405.26 : x
  2. Step 2: Convert to fraction form
    71,325.24/106,987.75 = 21,405.26/x
  3. Step 3: Cross multiply
    71,325.24x = 106,987.75 × 21,405.26
  4. Step 4: Simplify right side
    71,325.24x = 2,290,100,605.57
  5. Step 5: Solve for x
    x = 2,290,100,605.57/71,325.24
  6. Step 6: Final answer
    x = 32,107.86

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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.