Home / 71,004.20-97,986.11-39,173.22

Finding the Fourth Proportional to 71,004.20, 97,986.11 and 39,173.22

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Solution

The fourth proportional to 71,004.20, 97,986.11 and 39,173.22 is: 54,059.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,004.20 : 97,986.11 = 39,173.22 : x
  2. Step 2: Convert to fraction form
    71,004.20/97,986.11 = 39,173.22/x
  3. Step 3: Cross multiply
    71,004.20x = 97,986.11 × 39,173.22
  4. Step 4: Simplify right side
    71,004.20x = 3,838,431,248.11
  5. Step 5: Solve for x
    x = 3,838,431,248.11/71,004.20
  6. Step 6: Final answer
    x = 54,059.22

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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.