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Finding the Fourth Proportional to 75,419, 104,087.40 and 43,588.16

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Solution

The fourth proportional to 75,419, 104,087.40 and 43,588.16 is: 60,156.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,419 : 104,087.40 = 43,588.16 : x
  2. Step 2: Convert to fraction form
    75,419/104,087.40 = 43,588.16/x
  3. Step 3: Cross multiply
    75,419x = 104,087.40 × 43,588.16
  4. Step 4: Simplify right side
    75,419x = 4,536,978,245.18
  5. Step 5: Solve for x
    x = 4,536,978,245.18/75,419
  6. Step 6: Final answer
    x = 60,156.97

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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.