Home / 71,003.85-97,983.68-39,172.74

Finding the Fourth Proportional to 71,003.85, 97,983.68 and 39,172.74

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Solution

The fourth proportional to 71,003.85, 97,983.68 and 39,172.74 is: 54,057.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,003.85 : 97,983.68 = 39,172.74 : x
  2. Step 2: Convert to fraction form
    71,003.85/97,983.68 = 39,172.74/x
  3. Step 3: Cross multiply
    71,003.85x = 97,983.68 × 39,172.74
  4. Step 4: Simplify right side
    71,003.85x = 3,838,289,025.02
  5. Step 5: Solve for x
    x = 3,838,289,025.02/71,003.85
  6. Step 6: Final answer
    x = 54,057.48

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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.