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Finding the Fourth Proportional to 73,578, 110,369.16 and 18,174

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Solution

The fourth proportional to 73,578, 110,369.16 and 18,174 is: 27,261.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,578 : 110,369.16 = 18,174 : x
  2. Step 2: Convert to fraction form
    73,578/110,369.16 = 18,174/x
  3. Step 3: Cross multiply
    73,578x = 110,369.16 × 18,174
  4. Step 4: Simplify right side
    73,578x = 2,005,849,113.84
  5. Step 5: Solve for x
    x = 2,005,849,113.84/73,578
  6. Step 6: Final answer
    x = 27,261.53

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