Home / 50,661.60-76,019.76-21,099.84

Finding the Fourth Proportional to 50,661.60, 76,019.76 and 21,099.84

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Solution

The fourth proportional to 50,661.60, 76,019.76 and 21,099.84 is: 31,661.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,661.60 : 76,019.76 = 21,099.84 : x
  2. Step 2: Convert to fraction form
    50,661.60/76,019.76 = 21,099.84/x
  3. Step 3: Cross multiply
    50,661.60x = 76,019.76 × 21,099.84
  4. Step 4: Simplify right side
    50,661.60x = 1,604,004,772.84
  5. Step 5: Solve for x
    x = 1,604,004,772.84/50,661.60
  6. Step 6: Final answer
    x = 31,661.16

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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.