Home / 68,922.45-103,386.31-21,541.91

Finding the Fourth Proportional to 68,922.45, 103,386.31 and 21,541.91

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Solution

The fourth proportional to 68,922.45, 103,386.31 and 21,541.91 is: 32,313.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,922.45 : 103,386.31 = 21,541.91 : x
  2. Step 2: Convert to fraction form
    68,922.45/103,386.31 = 21,541.91/x
  3. Step 3: Cross multiply
    68,922.45x = 103,386.31 × 21,541.91
  4. Step 4: Simplify right side
    68,922.45x = 2,227,138,014.47
  5. Step 5: Solve for x
    x = 2,227,138,014.47/68,922.45
  6. Step 6: Final answer
    x = 32,313.68

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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.