Home / 49,631.21-74,460.71-20,069.80

Finding the Fourth Proportional to 49,631.21, 74,460.71 and 20,069.80

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Solution

The fourth proportional to 49,631.21, 74,460.71 and 20,069.80 is: 30,110.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,631.21 : 74,460.71 = 20,069.80 : x
  2. Step 2: Convert to fraction form
    49,631.21/74,460.71 = 20,069.80/x
  3. Step 3: Cross multiply
    49,631.21x = 74,460.71 × 20,069.80
  4. Step 4: Simplify right side
    49,631.21x = 1,494,411,489.89
  5. Step 5: Solve for x
    x = 1,494,411,489.89/49,631.21
  6. Step 6: Final answer
    x = 30,110.32

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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.