Home / 55,203.99-76,179.24-31,330.23

Finding the Fourth Proportional to 55,203.99, 76,179.24 and 31,330.23

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Solution

The fourth proportional to 55,203.99, 76,179.24 and 31,330.23 is: 43,234.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,203.99 : 76,179.24 = 31,330.23 : x
  2. Step 2: Convert to fraction form
    55,203.99/76,179.24 = 31,330.23/x
  3. Step 3: Cross multiply
    55,203.99x = 76,179.24 × 31,330.23
  4. Step 4: Simplify right side
    55,203.99x = 2,386,713,110.43
  5. Step 5: Solve for x
    x = 2,386,713,110.43/55,203.99
  6. Step 6: Final answer
    x = 43,234.43

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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.