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Finding the Fourth Proportional to 71,354.45, 98,469.12 and 39,525.39

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Solution

The fourth proportional to 71,354.45, 98,469.12 and 39,525.39 is: 54,545.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,354.45 : 98,469.12 = 39,525.39 : x
  2. Step 2: Convert to fraction form
    71,354.45/98,469.12 = 39,525.39/x
  3. Step 3: Cross multiply
    71,354.45x = 98,469.12 × 39,525.39
  4. Step 4: Simplify right side
    71,354.45x = 3,892,030,370.96
  5. Step 5: Solve for x
    x = 3,892,030,370.96/71,354.45
  6. Step 6: Final answer
    x = 54,545.03

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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.