Home / 56,691.25-78,233.97-31,540.75

Finding the Fourth Proportional to 56,691.25, 78,233.97 and 31,540.75

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Solution

The fourth proportional to 56,691.25, 78,233.97 and 31,540.75 is: 43,526.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,691.25 : 78,233.97 = 31,540.75 : x
  2. Step 2: Convert to fraction form
    56,691.25/78,233.97 = 31,540.75/x
  3. Step 3: Cross multiply
    56,691.25x = 78,233.97 × 31,540.75
  4. Step 4: Simplify right side
    56,691.25x = 2,467,558,089.28
  5. Step 5: Solve for x
    x = 2,467,558,089.28/56,691.25
  6. Step 6: Final answer
    x = 43,526.26

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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.