Home / 76,620.20-114,930.30-53,000.60

Finding the Fourth Proportional to 76,620.20, 114,930.30 and 53,000.60

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Solution

The fourth proportional to 76,620.20, 114,930.30 and 53,000.60 is: 79,500.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,620.20 : 114,930.30 = 53,000.60 : x
  2. Step 2: Convert to fraction form
    76,620.20/114,930.30 = 53,000.60/x
  3. Step 3: Cross multiply
    76,620.20x = 114,930.30 × 53,000.60
  4. Step 4: Simplify right side
    76,620.20x = 6,091,374,858.18
  5. Step 5: Solve for x
    x = 6,091,374,858.18/76,620.20
  6. Step 6: Final answer
    x = 79,500.90

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1.5x scale

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.