Home / 45,213.96-67,821.51-31,170.23

Finding the Fourth Proportional to 45,213.96, 67,821.51 and 31,170.23

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Solution

The fourth proportional to 45,213.96, 67,821.51 and 31,170.23 is: 46,755.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,213.96 : 67,821.51 = 31,170.23 : x
  2. Step 2: Convert to fraction form
    45,213.96/67,821.51 = 31,170.23/x
  3. Step 3: Cross multiply
    45,213.96x = 67,821.51 × 31,170.23
  4. Step 4: Simplify right side
    45,213.96x = 2,114,011,896.09
  5. Step 5: Solve for x
    x = 2,114,011,896.09/45,213.96
  6. Step 6: Final answer
    x = 46,755.74

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Double scale
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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.