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Finding the Fourth Proportional to 62,847.29, 86,720.22 and 36,990.47

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Solution

The fourth proportional to 62,847.29, 86,720.22 and 36,990.47 is: 51,041.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,847.29 : 86,720.22 = 36,990.47 : x
  2. Step 2: Convert to fraction form
    62,847.29/86,720.22 = 36,990.47/x
  3. Step 3: Cross multiply
    62,847.29x = 86,720.22 × 36,990.47
  4. Step 4: Simplify right side
    62,847.29x = 3,207,821,401.42
  5. Step 5: Solve for x
    x = 3,207,821,401.42/62,847.29
  6. Step 6: Final answer
    x = 51,041.53

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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.