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Finding the Fourth Proportional to 71,003.35, 97,982.98 and 39,172.24

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Solution

The fourth proportional to 71,003.35, 97,982.98 and 39,172.24 is: 54,056.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,003.35 : 97,982.98 = 39,172.24 : x
  2. Step 2: Convert to fraction form
    71,003.35/97,982.98 = 39,172.24/x
  3. Step 3: Cross multiply
    71,003.35x = 97,982.98 × 39,172.24
  4. Step 4: Simplify right side
    71,003.35x = 3,838,213,053.37
  5. Step 5: Solve for x
    x = 3,838,213,053.37/71,003.35
  6. Step 6: Final answer
    x = 54,056.79

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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.