Home / 71,002.20-97,983.36-39,171.10

Finding the Fourth Proportional to 71,002.20, 97,983.36 and 39,171.10

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Solution

The fourth proportional to 71,002.20, 97,983.36 and 39,171.10 is: 54,056.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,002.20 : 97,983.36 = 39,171.10 : x
  2. Step 2: Convert to fraction form
    71,002.20/97,983.36 = 39,171.10/x
  3. Step 3: Cross multiply
    71,002.20x = 97,983.36 × 39,171.10
  4. Step 4: Simplify right side
    71,002.20x = 3,838,115,992.90
  5. Step 5: Solve for x
    x = 3,838,115,992.90/71,002.20
  6. Step 6: Final answer
    x = 54,056.30

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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.