Home / 68,930.26-103,250.08-31,521.81

Finding the Fourth Proportional to 68,930.26, 103,250.08 and 31,521.81

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Solution

The fourth proportional to 68,930.26, 103,250.08 and 31,521.81 is: 47,216.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,930.26 : 103,250.08 = 31,521.81 : x
  2. Step 2: Convert to fraction form
    68,930.26/103,250.08 = 31,521.81/x
  3. Step 3: Cross multiply
    68,930.26x = 103,250.08 × 31,521.81
  4. Step 4: Simplify right side
    68,930.26x = 3,254,629,072.74
  5. Step 5: Solve for x
    x = 3,254,629,072.74/68,930.26
  6. Step 6: Final answer
    x = 47,216.26

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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.