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Finding the Fourth Proportional to 56,350, 84,493.38 and 38,600.72

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Solution

The fourth proportional to 56,350, 84,493.38 and 38,600.72 is: 57,879.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,350 : 84,493.38 = 38,600.72 : x
  2. Step 2: Convert to fraction form
    56,350/84,493.38 = 38,600.72/x
  3. Step 3: Cross multiply
    56,350x = 84,493.38 × 38,600.72
  4. Step 4: Simplify right side
    56,350x = 3,261,505,303.23
  5. Step 5: Solve for x
    x = 3,261,505,303.23/56,350
  6. Step 6: Final answer
    x = 57,879.42

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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.