Home / 71,329.24-106,993.60-21,409.12

Finding the Fourth Proportional to 71,329.24, 106,993.60 and 21,409.12

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Solution

The fourth proportional to 71,329.24, 106,993.60 and 21,409.12 is: 32,113.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,329.24 : 106,993.60 = 21,409.12 : x
  2. Step 2: Convert to fraction form
    71,329.24/106,993.60 = 21,409.12/x
  3. Step 3: Cross multiply
    71,329.24x = 106,993.60 × 21,409.12
  4. Step 4: Simplify right side
    71,329.24x = 2,290,638,179.62
  5. Step 5: Solve for x
    x = 2,290,638,179.62/71,329.24
  6. Step 6: Final answer
    x = 32,113.60

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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.