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Finding the Fourth Proportional to 66,230.63, 91,398.27 and 37,938.14

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Solution

The fourth proportional to 66,230.63, 91,398.27 and 37,938.14 is: 52,354.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,230.63 : 91,398.27 = 37,938.14 : x
  2. Step 2: Convert to fraction form
    66,230.63/91,398.27 = 37,938.14/x
  3. Step 3: Cross multiply
    66,230.63x = 91,398.27 × 37,938.14
  4. Step 4: Simplify right side
    66,230.63x = 3,467,479,906.03
  5. Step 5: Solve for x
    x = 3,467,479,906.03/66,230.63
  6. Step 6: Final answer
    x = 52,354.63

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1.5x scale

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.