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Finding the Fourth Proportional to 91,857.56, 137,817 and 35,699.46

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Solution

The fourth proportional to 91,857.56, 137,817 and 35,699.46 is: 53,561.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,857.56 : 137,817 = 35,699.46 : x
  2. Step 2: Convert to fraction form
    91,857.56/137,817 = 35,699.46/x
  3. Step 3: Cross multiply
    91,857.56x = 137,817 × 35,699.46
  4. Step 4: Simplify right side
    91,857.56x = 4,919,992,478.82
  5. Step 5: Solve for x
    x = 4,919,992,478.82/91,857.56
  6. Step 6: Final answer
    x = 53,561.11

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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.