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Finding the Fourth Proportional to 56,367.86, 84,532.14 and 18,919.94

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Solution

The fourth proportional to 56,367.86, 84,532.14 and 18,919.94 is: 28,373.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,367.86 : 84,532.14 = 18,919.94 : x
  2. Step 2: Convert to fraction form
    56,367.86/84,532.14 = 18,919.94/x
  3. Step 3: Cross multiply
    56,367.86x = 84,532.14 × 18,919.94
  4. Step 4: Simplify right side
    56,367.86x = 1,599,342,594.21
  5. Step 5: Solve for x
    x = 1,599,342,594.21/56,367.86
  6. Step 6: Final answer
    x = 28,373.31

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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.