Home / 51,968.40-77,952.60-51,190.80

Finding the Fourth Proportional to 51,968.40, 77,952.60 and 51,190.80

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Solution

The fourth proportional to 51,968.40, 77,952.60 and 51,190.80 is: 76,786.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,968.40 : 77,952.60 = 51,190.80 : x
  2. Step 2: Convert to fraction form
    51,968.40/77,952.60 = 51,190.80/x
  3. Step 3: Cross multiply
    51,968.40x = 77,952.60 × 51,190.80
  4. Step 4: Simplify right side
    51,968.40x = 3,990,455,956.08
  5. Step 5: Solve for x
    x = 3,990,455,956.08/51,968.40
  6. Step 6: Final answer
    x = 76,786.20

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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.