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Finding the Fourth Proportional to 79,090, 109,163.64 and 45,575.44

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Solution

The fourth proportional to 79,090, 109,163.64 and 45,575.44 is: 62,905.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,090 : 109,163.64 = 45,575.44 : x
  2. Step 2: Convert to fraction form
    79,090/109,163.64 = 45,575.44/x
  3. Step 3: Cross multiply
    79,090x = 109,163.64 × 45,575.44
  4. Step 4: Simplify right side
    79,090x = 4,975,180,925.00
  5. Step 5: Solve for x
    x = 4,975,180,925.00/79,090
  6. Step 6: Final answer
    x = 62,905.31

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.