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Finding the Fourth Proportional to 71,000.64, 97,976.03 and 39,170.07

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Solution

The fourth proportional to 71,000.64, 97,976.03 and 39,170.07 is: 54,052.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,000.64 : 97,976.03 = 39,170.07 : x
  2. Step 2: Convert to fraction form
    71,000.64/97,976.03 = 39,170.07/x
  3. Step 3: Cross multiply
    71,000.64x = 97,976.03 × 39,170.07
  4. Step 4: Simplify right side
    71,000.64x = 3,837,727,757.57
  5. Step 5: Solve for x
    x = 3,837,727,757.57/71,000.64
  6. Step 6: Final answer
    x = 54,052.02

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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.