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Finding the Fourth Proportional to 56,655.48, 84,906.63 and 21,576

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Solution

The fourth proportional to 56,655.48, 84,906.63 and 21,576 is: 32,334.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,655.48 : 84,906.63 = 21,576 : x
  2. Step 2: Convert to fraction form
    56,655.48/84,906.63 = 21,576/x
  3. Step 3: Cross multiply
    56,655.48x = 84,906.63 × 21,576
  4. Step 4: Simplify right side
    56,655.48x = 1,831,945,448.88
  5. Step 5: Solve for x
    x = 1,831,945,448.88/56,655.48
  6. Step 6: Final answer
    x = 32,334.83

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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.