Home / 80,926.80-121,260.60-51,291.60

Finding the Fourth Proportional to 80,926.80, 121,260.60 and 51,291.60

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Solution

The fourth proportional to 80,926.80, 121,260.60 and 51,291.60 is: 76,855.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,926.80 : 121,260.60 = 51,291.60 : x
  2. Step 2: Convert to fraction form
    80,926.80/121,260.60 = 51,291.60/x
  3. Step 3: Cross multiply
    80,926.80x = 121,260.60 × 51,291.60
  4. Step 4: Simplify right side
    80,926.80x = 6,219,650,190.96
  5. Step 5: Solve for x
    x = 6,219,650,190.96/80,926.80
  6. Step 6: Final answer
    x = 76,855.26

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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.