Home / 76,618.20-114,959.70-48,559.80

Finding the Fourth Proportional to 76,618.20, 114,959.70 and 48,559.80

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Solution

The fourth proportional to 76,618.20, 114,959.70 and 48,559.80 is: 72,860.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,618.20 : 114,959.70 = 48,559.80 : x
  2. Step 2: Convert to fraction form
    76,618.20/114,959.70 = 48,559.80/x
  3. Step 3: Cross multiply
    76,618.20x = 114,959.70 × 48,559.80
  4. Step 4: Simplify right side
    76,618.20x = 5,582,420,040.06
  5. Step 5: Solve for x
    x = 5,582,420,040.06/76,618.20
  6. Step 6: Final answer
    x = 72,860.23

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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.