Home / 57,261.72-79,021.29-31,768.08

Finding the Fourth Proportional to 57,261.72, 79,021.29 and 31,768.08

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Solution

The fourth proportional to 57,261.72, 79,021.29 and 31,768.08 is: 43,840.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,261.72 : 79,021.29 = 31,768.08 : x
  2. Step 2: Convert to fraction form
    57,261.72/79,021.29 = 31,768.08/x
  3. Step 3: Cross multiply
    57,261.72x = 79,021.29 × 31,768.08
  4. Step 4: Simplify right side
    57,261.72x = 2,510,354,662.42
  5. Step 5: Solve for x
    x = 2,510,354,662.42/57,261.72
  6. Step 6: Final answer
    x = 43,840.01

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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.