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Finding the Fourth Proportional to 68,893.20, 95,085 and 40,597.20

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Solution

The fourth proportional to 68,893.20, 95,085 and 40,597.20 is: 56,031.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,893.20 : 95,085 = 40,597.20 : x
  2. Step 2: Convert to fraction form
    68,893.20/95,085 = 40,597.20/x
  3. Step 3: Cross multiply
    68,893.20x = 95,085 × 40,597.20
  4. Step 4: Simplify right side
    68,893.20x = 3,860,184,762.00
  5. Step 5: Solve for x
    x = 3,860,184,762.00/68,893.20
  6. Step 6: Final answer
    x = 56,031.43

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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.