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Finding the Fourth Proportional to 56,373.37, 84,557.08 and 18,934.21

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Solution

The fourth proportional to 56,373.37, 84,557.08 and 18,934.21 is: 28,400.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,373.37 : 84,557.08 = 18,934.21 : x
  2. Step 2: Convert to fraction form
    56,373.37/84,557.08 = 18,934.21/x
  3. Step 3: Cross multiply
    56,373.37x = 84,557.08 × 18,934.21
  4. Step 4: Simplify right side
    56,373.37x = 1,601,021,163.44
  5. Step 5: Solve for x
    x = 1,601,021,163.44/56,373.37
  6. Step 6: Final answer
    x = 28,400.31

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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.