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Finding the Fourth Proportional to 65,677.81, 90,635.48 and 37,383.50

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Solution

The fourth proportional to 65,677.81, 90,635.48 and 37,383.50 is: 51,589.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,677.81 : 90,635.48 = 37,383.50 : x
  2. Step 2: Convert to fraction form
    65,677.81/90,635.48 = 37,383.50/x
  3. Step 3: Cross multiply
    65,677.81x = 90,635.48 × 37,383.50
  4. Step 4: Simplify right side
    65,677.81x = 3,388,271,466.58
  5. Step 5: Solve for x
    x = 3,388,271,466.58/65,677.81
  6. Step 6: Final answer
    x = 51,589.29

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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.