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Finding the Fourth Proportional to 64,650.63, 89,218.96 and 35,972.58

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Solution

The fourth proportional to 64,650.63, 89,218.96 and 35,972.58 is: 49,642.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,650.63 : 89,218.96 = 35,972.58 : x
  2. Step 2: Convert to fraction form
    64,650.63/89,218.96 = 35,972.58/x
  3. Step 3: Cross multiply
    64,650.63x = 89,218.96 × 35,972.58
  4. Step 4: Simplify right side
    64,650.63x = 3,209,436,086.19
  5. Step 5: Solve for x
    x = 3,209,436,086.19/64,650.63
  6. Step 6: Final answer
    x = 49,642.77

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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.