Home / 56,626.96-84,939.48-19,690

Finding the Fourth Proportional to 56,626.96, 84,939.48 and 19,690

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Solution

The fourth proportional to 56,626.96, 84,939.48 and 19,690 is: 29,534.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,626.96 : 84,939.48 = 19,690 : x
  2. Step 2: Convert to fraction form
    56,626.96/84,939.48 = 19,690/x
  3. Step 3: Cross multiply
    56,626.96x = 84,939.48 × 19,690
  4. Step 4: Simplify right side
    56,626.96x = 1,672,458,361.20
  5. Step 5: Solve for x
    x = 1,672,458,361.20/56,626.96
  6. Step 6: Final answer
    x = 29,534.67

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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.