Home / 87,183.56-130,755.88-40,430.36

Finding the Fourth Proportional to 87,183.56, 130,755.88 and 40,430.36

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Solution

The fourth proportional to 87,183.56, 130,755.88 and 40,430.36 is: 60,636.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,183.56 : 130,755.88 = 40,430.36 : x
  2. Step 2: Convert to fraction form
    87,183.56/130,755.88 = 40,430.36/x
  3. Step 3: Cross multiply
    87,183.56x = 130,755.88 × 40,430.36
  4. Step 4: Simplify right side
    87,183.56x = 5,286,507,300.52
  5. Step 5: Solve for x
    x = 5,286,507,300.52/87,183.56
  6. Step 6: Final answer
    x = 60,636.52

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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.