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Finding the Fourth Proportional to 75,398.75, 104,052 and 43,136.40

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Solution

The fourth proportional to 75,398.75, 104,052 and 43,136.40 is: 59,529.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,398.75 : 104,052 = 43,136.40 : x
  2. Step 2: Convert to fraction form
    75,398.75/104,052 = 43,136.40/x
  3. Step 3: Cross multiply
    75,398.75x = 104,052 × 43,136.40
  4. Step 4: Simplify right side
    75,398.75x = 4,488,428,692.80
  5. Step 5: Solve for x
    x = 4,488,428,692.80/75,398.75
  6. Step 6: Final answer
    x = 59,529.22

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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.