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Finding the Fourth Proportional to 56,563.30, 84,844.95 and 28,857.70

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Solution

The fourth proportional to 56,563.30, 84,844.95 and 28,857.70 is: 43,286.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,563.30 : 84,844.95 = 28,857.70 : x
  2. Step 2: Convert to fraction form
    56,563.30/84,844.95 = 28,857.70/x
  3. Step 3: Cross multiply
    56,563.30x = 84,844.95 × 28,857.70
  4. Step 4: Simplify right side
    56,563.30x = 2,448,430,113.62
  5. Step 5: Solve for x
    x = 2,448,430,113.62/56,563.30
  6. Step 6: Final answer
    x = 43,286.55

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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.