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Finding the Fourth Proportional to 66,741.00, 100,090.86 and 19,359.57

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Solution

The fourth proportional to 66,741.00, 100,090.86 and 19,359.57 is: 29,033.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,741.00 : 100,090.86 = 19,359.57 : x
  2. Step 2: Convert to fraction form
    66,741.00/100,090.86 = 19,359.57/x
  3. Step 3: Cross multiply
    66,741.00x = 100,090.86 × 19,359.57
  4. Step 4: Simplify right side
    66,741.00x = 1,937,716,313.27
  5. Step 5: Solve for x
    x = 1,937,716,313.27/66,741.00
  6. Step 6: Final answer
    x = 29,033.37

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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.