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Finding the Fourth Proportional to 66,496.94, 99,744.45 and 30,938.37

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Solution

The fourth proportional to 66,496.94, 99,744.45 and 30,938.37 is: 46,407.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,496.94 : 99,744.45 = 30,938.37 : x
  2. Step 2: Convert to fraction form
    66,496.94/99,744.45 = 30,938.37/x
  3. Step 3: Cross multiply
    66,496.94x = 99,744.45 × 30,938.37
  4. Step 4: Simplify right side
    66,496.94x = 3,085,930,699.55
  5. Step 5: Solve for x
    x = 3,085,930,699.55/66,496.94
  6. Step 6: Final answer
    x = 46,407.11

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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.