Home / 56,408.10-84,644.55-21,372.90

Finding the Fourth Proportional to 56,408.10, 84,644.55 and 21,372.90

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Solution

The fourth proportional to 56,408.10, 84,644.55 and 21,372.90 is: 32,071.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,408.10 : 84,644.55 = 21,372.90 : x
  2. Step 2: Convert to fraction form
    56,408.10/84,644.55 = 21,372.90/x
  3. Step 3: Cross multiply
    56,408.10x = 84,644.55 × 21,372.90
  4. Step 4: Simplify right side
    56,408.10x = 1,809,099,502.70
  5. Step 5: Solve for x
    x = 1,809,099,502.70/56,408.10
  6. Step 6: Final answer
    x = 32,071.63

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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.