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Finding the Fourth Proportional to 56,493.72, 84,688.25 and 20,935.22

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Solution

The fourth proportional to 56,493.72, 84,688.25 and 20,935.22 is: 31,383.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,493.72 : 84,688.25 = 20,935.22 : x
  2. Step 2: Convert to fraction form
    56,493.72/84,688.25 = 20,935.22/x
  3. Step 3: Cross multiply
    56,493.72x = 84,688.25 × 20,935.22
  4. Step 4: Simplify right side
    56,493.72x = 1,772,967,252.21
  5. Step 5: Solve for x
    x = 1,772,967,252.21/56,493.72
  6. Step 6: Final answer
    x = 31,383.44

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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.