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Finding the Fourth Proportional to 76,305, 114,489 and 41,203.32

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Solution

The fourth proportional to 76,305, 114,489 and 41,203.32 is: 61,821.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,305 : 114,489 = 41,203.32 : x
  2. Step 2: Convert to fraction form
    76,305/114,489 = 41,203.32/x
  3. Step 3: Cross multiply
    76,305x = 114,489 × 41,203.32
  4. Step 4: Simplify right side
    76,305x = 4,717,326,903.48
  5. Step 5: Solve for x
    x = 4,717,326,903.48/76,305
  6. Step 6: Final answer
    x = 61,821.99

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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.