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Finding the Fourth Proportional to 56,651.39, 84,900.54 and 21,571.91

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Solution

The fourth proportional to 56,651.39, 84,900.54 and 21,571.91 is: 32,328.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,651.39 : 84,900.54 = 21,571.91 : x
  2. Step 2: Convert to fraction form
    56,651.39/84,900.54 = 21,571.91/x
  3. Step 3: Cross multiply
    56,651.39x = 84,900.54 × 21,571.91
  4. Step 4: Simplify right side
    56,651.39x = 1,831,466,782.60
  5. Step 5: Solve for x
    x = 1,831,466,782.60/56,651.39
  6. Step 6: Final answer
    x = 32,328.72

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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.