Home / 49,986.10-74,950.80-20,369.26

Finding the Fourth Proportional to 49,986.10, 74,950.80 and 20,369.26

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Solution

The fourth proportional to 49,986.10, 74,950.80 and 20,369.26 is: 30,542.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,986.10 : 74,950.80 = 20,369.26 : x
  2. Step 2: Convert to fraction form
    49,986.10/74,950.80 = 20,369.26/x
  3. Step 3: Cross multiply
    49,986.10x = 74,950.80 × 20,369.26
  4. Step 4: Simplify right side
    49,986.10x = 1,526,692,332.41
  5. Step 5: Solve for x
    x = 1,526,692,332.41/49,986.10
  6. Step 6: Final answer
    x = 30,542.34

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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.