Home / 43,644.29-65,375.60-42,138.67

Finding the Fourth Proportional to 43,644.29, 65,375.60 and 42,138.67

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Solution

The fourth proportional to 43,644.29, 65,375.60 and 42,138.67 is: 63,120.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,644.29 : 65,375.60 = 42,138.67 : x
  2. Step 2: Convert to fraction form
    43,644.29/65,375.60 = 42,138.67/x
  3. Step 3: Cross multiply
    43,644.29x = 65,375.60 × 42,138.67
  4. Step 4: Simplify right side
    43,644.29x = 2,754,840,834.45
  5. Step 5: Solve for x
    x = 2,754,840,834.45/43,644.29
  6. Step 6: Final answer
    x = 63,120.31

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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.