Home / 71,013.18-97,997.97-39,181.80

Finding the Fourth Proportional to 71,013.18, 97,997.97 and 39,181.80

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Solution

The fourth proportional to 71,013.18, 97,997.97 and 39,181.80 is: 54,070.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,013.18 : 97,997.97 = 39,181.80 : x
  2. Step 2: Convert to fraction form
    71,013.18/97,997.97 = 39,181.80/x
  3. Step 3: Cross multiply
    71,013.18x = 97,997.97 × 39,181.80
  4. Step 4: Simplify right side
    71,013.18x = 3,839,736,860.95
  5. Step 5: Solve for x
    x = 3,839,736,860.95/71,013.18
  6. Step 6: Final answer
    x = 54,070.76

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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.