Home / 69,217.98-103,851.05-21,840.38

Finding the Fourth Proportional to 69,217.98, 103,851.05 and 21,840.38

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Solution

The fourth proportional to 69,217.98, 103,851.05 and 21,840.38 is: 32,768.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,217.98 : 103,851.05 = 21,840.38 : x
  2. Step 2: Convert to fraction form
    69,217.98/103,851.05 = 21,840.38/x
  3. Step 3: Cross multiply
    69,217.98x = 103,851.05 × 21,840.38
  4. Step 4: Simplify right side
    69,217.98x = 2,268,146,395.40
  5. Step 5: Solve for x
    x = 2,268,146,395.40/69,217.98
  6. Step 6: Final answer
    x = 32,768.17

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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.