Home / 77,984.48-117,022.80-28,771.04

Finding the Fourth Proportional to 77,984.48, 117,022.80 and 28,771.04

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Solution

The fourth proportional to 77,984.48, 117,022.80 and 28,771.04 is: 43,173.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,984.48 : 117,022.80 = 28,771.04 : x
  2. Step 2: Convert to fraction form
    77,984.48/117,022.80 = 28,771.04/x
  3. Step 3: Cross multiply
    77,984.48x = 117,022.80 × 28,771.04
  4. Step 4: Simplify right side
    77,984.48x = 3,366,867,659.71
  5. Step 5: Solve for x
    x = 3,366,867,659.71/77,984.48
  6. Step 6: Final answer
    x = 43,173.56

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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.