Home / 71,021.62-98,008.98-39,189.82

Finding the Fourth Proportional to 71,021.62, 98,008.98 and 39,189.82

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Solution

The fourth proportional to 71,021.62, 98,008.98 and 39,189.82 is: 54,081.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,021.62 : 98,008.98 = 39,189.82 : x
  2. Step 2: Convert to fraction form
    71,021.62/98,008.98 = 39,189.82/x
  3. Step 3: Cross multiply
    71,021.62x = 98,008.98 × 39,189.82
  4. Step 4: Simplify right side
    71,021.62x = 3,840,954,284.58
  5. Step 5: Solve for x
    x = 3,840,954,284.58/71,021.62
  6. Step 6: Final answer
    x = 54,081.48

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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.