Home / 71,453.90-98,610.32-39,622.12

Finding the Fourth Proportional to 71,453.90, 98,610.32 and 39,622.12

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Solution

The fourth proportional to 71,453.90, 98,610.32 and 39,622.12 is: 54,680.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,453.90 : 98,610.32 = 39,622.12 : x
  2. Step 2: Convert to fraction form
    71,453.90/98,610.32 = 39,622.12/x
  3. Step 3: Cross multiply
    71,453.90x = 98,610.32 × 39,622.12
  4. Step 4: Simplify right side
    71,453.90x = 3,907,149,439.23
  5. Step 5: Solve for x
    x = 3,907,149,439.23/71,453.90
  6. Step 6: Final answer
    x = 54,680.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.