Home / 43,453.52-65,130.36-18,456.56

Finding the Fourth Proportional to 43,453.52, 65,130.36 and 18,456.56

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Solution

The fourth proportional to 43,453.52, 65,130.36 and 18,456.56 is: 27,663.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,453.52 : 65,130.36 = 18,456.56 : x
  2. Step 2: Convert to fraction form
    43,453.52/65,130.36 = 18,456.56/x
  3. Step 3: Cross multiply
    43,453.52x = 65,130.36 × 18,456.56
  4. Step 4: Simplify right side
    43,453.52x = 1,202,082,397.16
  5. Step 5: Solve for x
    x = 1,202,082,397.16/43,453.52
  6. Step 6: Final answer
    x = 27,663.64

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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.