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Finding the Fourth Proportional to 64,701.63, 89,287.25 and 36,407.39

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Solution

The fourth proportional to 64,701.63, 89,287.25 and 36,407.39 is: 50,241.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,701.63 : 89,287.25 = 36,407.39 : x
  2. Step 2: Convert to fraction form
    64,701.63/89,287.25 = 36,407.39/x
  3. Step 3: Cross multiply
    64,701.63x = 89,287.25 × 36,407.39
  4. Step 4: Simplify right side
    64,701.63x = 3,250,715,104.30
  5. Step 5: Solve for x
    x = 3,250,715,104.30/64,701.63
  6. Step 6: Final answer
    x = 50,241.63

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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.