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Finding the Fourth Proportional to 56,273.71, 84,368.65 and 18,811.62

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Solution

The fourth proportional to 56,273.71, 84,368.65 and 18,811.62 is: 28,203.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,273.71 : 84,368.65 = 18,811.62 : x
  2. Step 2: Convert to fraction form
    56,273.71/84,368.65 = 18,811.62/x
  3. Step 3: Cross multiply
    56,273.71x = 84,368.65 × 18,811.62
  4. Step 4: Simplify right side
    56,273.71x = 1,587,110,983.71
  5. Step 5: Solve for x
    x = 1,587,110,983.71/56,273.71
  6. Step 6: Final answer
    x = 28,203.42

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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.