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Finding the Fourth Proportional to 45,325.27, 67,918.65 and 19,015.66

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Solution

The fourth proportional to 45,325.27, 67,918.65 and 19,015.66 is: 28,494.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,325.27 : 67,918.65 = 19,015.66 : x
  2. Step 2: Convert to fraction form
    45,325.27/67,918.65 = 19,015.66/x
  3. Step 3: Cross multiply
    45,325.27x = 67,918.65 × 19,015.66
  4. Step 4: Simplify right side
    45,325.27x = 1,291,518,076.61
  5. Step 5: Solve for x
    x = 1,291,518,076.61/45,325.27
  6. Step 6: Final answer
    x = 28,494.44

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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.