Home / 95,319.21-142,979.78-28,759.89

Finding the Fourth Proportional to 95,319.21, 142,979.78 and 28,759.89

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Solution

The fourth proportional to 95,319.21, 142,979.78 and 28,759.89 is: 43,140.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,319.21 : 142,979.78 = 28,759.89 : x
  2. Step 2: Convert to fraction form
    95,319.21/142,979.78 = 28,759.89/x
  3. Step 3: Cross multiply
    95,319.21x = 142,979.78 × 28,759.89
  4. Step 4: Simplify right side
    95,319.21x = 4,112,082,601.22
  5. Step 5: Solve for x
    x = 4,112,082,601.22/95,319.21
  6. Step 6: Final answer
    x = 43,140.12

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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.