Home / 55,448.66-76,522.78-31,255.58

Finding the Fourth Proportional to 55,448.66, 76,522.78 and 31,255.58

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Solution

The fourth proportional to 55,448.66, 76,522.78 and 31,255.58 is: 43,134.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,448.66 : 76,522.78 = 31,255.58 : x
  2. Step 2: Convert to fraction form
    55,448.66/76,522.78 = 31,255.58/x
  3. Step 3: Cross multiply
    55,448.66x = 76,522.78 × 31,255.58
  4. Step 4: Simplify right side
    55,448.66x = 2,391,763,872.11
  5. Step 5: Solve for x
    x = 2,391,763,872.11/55,448.66
  6. Step 6: Final answer
    x = 43,134.75

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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.