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Finding the Fourth Proportional to 85,262.50, 117,661.32 and 48,969.88

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Solution

The fourth proportional to 85,262.50, 117,661.32 and 48,969.88 is: 67,577.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,262.50 : 117,661.32 = 48,969.88 : x
  2. Step 2: Convert to fraction form
    85,262.50/117,661.32 = 48,969.88/x
  3. Step 3: Cross multiply
    85,262.50x = 117,661.32 × 48,969.88
  4. Step 4: Simplify right side
    85,262.50x = 5,761,860,721.04
  5. Step 5: Solve for x
    x = 5,761,860,721.04/85,262.50
  6. Step 6: Final answer
    x = 67,577.90

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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.