Home / 45,207.14-67,821.99-31,906.12

Finding the Fourth Proportional to 45,207.14, 67,821.99 and 31,906.12

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Solution

The fourth proportional to 45,207.14, 67,821.99 and 31,906.12 is: 47,867.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,207.14 : 67,821.99 = 31,906.12 : x
  2. Step 2: Convert to fraction form
    45,207.14/67,821.99 = 31,906.12/x
  3. Step 3: Cross multiply
    45,207.14x = 67,821.99 × 31,906.12
  4. Step 4: Simplify right side
    45,207.14x = 2,163,936,302.26
  5. Step 5: Solve for x
    x = 2,163,936,302.26/45,207.14
  6. Step 6: Final answer
    x = 47,867.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.