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Finding the Fourth Proportional to 73,892, 101,971.50 and 40,358

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Solution

The fourth proportional to 73,892, 101,971.50 and 40,358 is: 55,694.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,892 : 101,971.50 = 40,358 : x
  2. Step 2: Convert to fraction form
    73,892/101,971.50 = 40,358/x
  3. Step 3: Cross multiply
    73,892x = 101,971.50 × 40,358
  4. Step 4: Simplify right side
    73,892x = 4,115,365,797
  5. Step 5: Solve for x
    x = 4,115,365,797/73,892
  6. Step 6: Final answer
    x = 55,694.33

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.