Home / 73,157.37-109,708.51-28,759.85

Finding the Fourth Proportional to 73,157.37, 109,708.51 and 28,759.85

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Solution

The fourth proportional to 73,157.37, 109,708.51 and 28,759.85 is: 43,128.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,157.37 : 109,708.51 = 28,759.85 : x
  2. Step 2: Convert to fraction form
    73,157.37/109,708.51 = 28,759.85/x
  3. Step 3: Cross multiply
    73,157.37x = 109,708.51 × 28,759.85
  4. Step 4: Simplify right side
    73,157.37x = 3,155,200,291.32
  5. Step 5: Solve for x
    x = 3,155,200,291.32/73,157.37
  6. Step 6: Final answer
    x = 43,128.95

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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.