Home / 57,765.20-86,604.60-31,499.60

Finding the Fourth Proportional to 57,765.20, 86,604.60 and 31,499.60

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Solution

The fourth proportional to 57,765.20, 86,604.60 and 31,499.60 is: 47,225.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,765.20 : 86,604.60 = 31,499.60 : x
  2. Step 2: Convert to fraction form
    57,765.20/86,604.60 = 31,499.60/x
  3. Step 3: Cross multiply
    57,765.20x = 86,604.60 × 31,499.60
  4. Step 4: Simplify right side
    57,765.20x = 2,728,010,258.16
  5. Step 5: Solve for x
    x = 2,728,010,258.16/57,765.20
  6. Step 6: Final answer
    x = 47,225.84

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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.