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Finding the Fourth Proportional to 72,883.52, 100,544.90 and 42,650.30

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Solution

The fourth proportional to 72,883.52, 100,544.90 and 42,650.30 is: 58,837.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,883.52 : 100,544.90 = 42,650.30 : x
  2. Step 2: Convert to fraction form
    72,883.52/100,544.90 = 42,650.30/x
  3. Step 3: Cross multiply
    72,883.52x = 100,544.90 × 42,650.30
  4. Step 4: Simplify right side
    72,883.52x = 4,288,270,186.58
  5. Step 5: Solve for x
    x = 4,288,270,186.58/72,883.52
  6. Step 6: Final answer
    x = 58,837.31

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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.