Home / 78,944.88-118,334.56-36,790.24

Finding the Fourth Proportional to 78,944.88, 118,334.56 and 36,790.24

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Solution

The fourth proportional to 78,944.88, 118,334.56 and 36,790.24 is: 55,146.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,944.88 : 118,334.56 = 36,790.24 : x
  2. Step 2: Convert to fraction form
    78,944.88/118,334.56 = 36,790.24/x
  3. Step 3: Cross multiply
    78,944.88x = 118,334.56 × 36,790.24
  4. Step 4: Simplify right side
    78,944.88x = 4,353,556,862.69
  5. Step 5: Solve for x
    x = 4,353,556,862.69/78,944.88
  6. Step 6: Final answer
    x = 55,146.79

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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.