Home / 71,450.18-98,600.85-39,623.78

Finding the Fourth Proportional to 71,450.18, 98,600.85 and 39,623.78

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Solution

The fourth proportional to 71,450.18, 98,600.85 and 39,623.78 is: 54,680.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,450.18 : 98,600.85 = 39,623.78 : x
  2. Step 2: Convert to fraction form
    71,450.18/98,600.85 = 39,623.78/x
  3. Step 3: Cross multiply
    71,450.18x = 98,600.85 × 39,623.78
  4. Step 4: Simplify right side
    71,450.18x = 3,906,938,388.21
  5. Step 5: Solve for x
    x = 3,906,938,388.21/71,450.18
  6. Step 6: Final answer
    x = 54,680.60

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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.