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Finding the Fourth Proportional to 43,385.28, 64,899.72 and 34,637.28

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Solution

The fourth proportional to 43,385.28, 64,899.72 and 34,637.28 is: 51,813.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,385.28 : 64,899.72 = 34,637.28 : x
  2. Step 2: Convert to fraction form
    43,385.28/64,899.72 = 34,637.28/x
  3. Step 3: Cross multiply
    43,385.28x = 64,899.72 × 34,637.28
  4. Step 4: Simplify right side
    43,385.28x = 2,247,949,773.56
  5. Step 5: Solve for x
    x = 2,247,949,773.56/43,385.28
  6. Step 6: Final answer
    x = 51,813.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.