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Finding the Fourth Proportional to 66,230.31, 91,406.10 and 37,935.99

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Solution

The fourth proportional to 66,230.31, 91,406.10 and 37,935.99 is: 52,356.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,230.31 : 91,406.10 = 37,935.99 : x
  2. Step 2: Convert to fraction form
    66,230.31/91,406.10 = 37,935.99/x
  3. Step 3: Cross multiply
    66,230.31x = 91,406.10 × 37,935.99
  4. Step 4: Simplify right side
    66,230.31x = 3,467,580,895.54
  5. Step 5: Solve for x
    x = 3,467,580,895.54/66,230.31
  6. Step 6: Final answer
    x = 52,356.40

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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.