Home / 56,728.21-85,039.45-19,262.66

Finding the Fourth Proportional to 56,728.21, 85,039.45 and 19,262.66

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Solution

The fourth proportional to 56,728.21, 85,039.45 and 19,262.66 is: 28,876.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,728.21 : 85,039.45 = 19,262.66 : x
  2. Step 2: Convert to fraction form
    56,728.21/85,039.45 = 19,262.66/x
  3. Step 3: Cross multiply
    56,728.21x = 85,039.45 × 19,262.66
  4. Step 4: Simplify right side
    56,728.21x = 1,638,086,125.28
  5. Step 5: Solve for x
    x = 1,638,086,125.28/56,728.21
  6. Step 6: Final answer
    x = 28,876.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.