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Finding the Fourth Proportional to 61,814.63, 85,241.61 and 50,447.49

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Solution

The fourth proportional to 61,814.63, 85,241.61 and 50,447.49 is: 69,566.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,814.63 : 85,241.61 = 50,447.49 : x
  2. Step 2: Convert to fraction form
    61,814.63/85,241.61 = 50,447.49/x
  3. Step 3: Cross multiply
    61,814.63x = 85,241.61 × 50,447.49
  4. Step 4: Simplify right side
    61,814.63x = 4,300,225,268.06
  5. Step 5: Solve for x
    x = 4,300,225,268.06/61,814.63
  6. Step 6: Final answer
    x = 69,566.47

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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.