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Finding the Fourth Proportional to 57,303.62, 85,877.54 and 21,745.82

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Solution

The fourth proportional to 57,303.62, 85,877.54 and 21,745.82 is: 32,589.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,303.62 : 85,877.54 = 21,745.82 : x
  2. Step 2: Convert to fraction form
    57,303.62/85,877.54 = 21,745.82/x
  3. Step 3: Cross multiply
    57,303.62x = 85,877.54 × 21,745.82
  4. Step 4: Simplify right side
    57,303.62x = 1,867,476,988.77
  5. Step 5: Solve for x
    x = 1,867,476,988.77/57,303.62
  6. Step 6: Final answer
    x = 32,589.17

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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.