Home / 51,208.20-76,812.30-40,840.20

Finding the Fourth Proportional to 51,208.20, 76,812.30 and 40,840.20

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Solution

The fourth proportional to 51,208.20, 76,812.30 and 40,840.20 is: 61,260.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,208.20 : 76,812.30 = 40,840.20 : x
  2. Step 2: Convert to fraction form
    51,208.20/76,812.30 = 40,840.20/x
  3. Step 3: Cross multiply
    51,208.20x = 76,812.30 × 40,840.20
  4. Step 4: Simplify right side
    51,208.20x = 3,137,029,694.46
  5. Step 5: Solve for x
    x = 3,137,029,694.46/51,208.20
  6. Step 6: Final answer
    x = 61,260.30

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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.