Home / 80,938.43-111,765.55-50,775.60

Finding the Fourth Proportional to 80,938.43, 111,765.55 and 50,775.60

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Solution

The fourth proportional to 80,938.43, 111,765.55 and 50,775.60 is: 70,114.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,938.43 : 111,765.55 = 50,775.60 : x
  2. Step 2: Convert to fraction form
    80,938.43/111,765.55 = 50,775.60/x
  3. Step 3: Cross multiply
    80,938.43x = 111,765.55 × 50,775.60
  4. Step 4: Simplify right side
    80,938.43x = 5,674,962,860.58
  5. Step 5: Solve for x
    x = 5,674,962,860.58/80,938.43
  6. Step 6: Final answer
    x = 70,114.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.