Home / 51,048.75-76,380.75-45,869.07

Finding the Fourth Proportional to 51,048.75, 76,380.75 and 45,869.07

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Solution

The fourth proportional to 51,048.75, 76,380.75 and 45,869.07 is: 68,630.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,048.75 : 76,380.75 = 45,869.07 : x
  2. Step 2: Convert to fraction form
    51,048.75/76,380.75 = 45,869.07/x
  3. Step 3: Cross multiply
    51,048.75x = 76,380.75 × 45,869.07
  4. Step 4: Simplify right side
    51,048.75x = 3,503,513,968.40
  5. Step 5: Solve for x
    x = 3,503,513,968.40/51,048.75
  6. Step 6: Final answer
    x = 68,630.75

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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.