Home / 55,229.99-76,217.46-31,356.66

Finding the Fourth Proportional to 55,229.99, 76,217.46 and 31,356.66

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Solution

The fourth proportional to 55,229.99, 76,217.46 and 31,356.66 is: 43,272.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,229.99 : 76,217.46 = 31,356.66 : x
  2. Step 2: Convert to fraction form
    55,229.99/76,217.46 = 31,356.66/x
  3. Step 3: Cross multiply
    55,229.99x = 76,217.46 × 31,356.66
  4. Step 4: Simplify right side
    55,229.99x = 2,389,924,979.28
  5. Step 5: Solve for x
    x = 2,389,924,979.28/55,229.99
  6. Step 6: Final answer
    x = 43,272.23

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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.