Home / 56,916.24-85,383.60-21,380.30

Finding the Fourth Proportional to 56,916.24, 85,383.60 and 21,380.30

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Solution

The fourth proportional to 56,916.24, 85,383.60 and 21,380.30 is: 32,073.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,916.24 : 85,383.60 = 21,380.30 : x
  2. Step 2: Convert to fraction form
    56,916.24/85,383.60 = 21,380.30/x
  3. Step 3: Cross multiply
    56,916.24x = 85,383.60 × 21,380.30
  4. Step 4: Simplify right side
    56,916.24x = 1,825,526,983.08
  5. Step 5: Solve for x
    x = 1,825,526,983.08/56,916.24
  6. Step 6: Final answer
    x = 32,073.92

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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.