Home / 69,812.19-104,687.22-19,880.95

Finding the Fourth Proportional to 69,812.19, 104,687.22 and 19,880.95

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Solution

The fourth proportional to 69,812.19, 104,687.22 and 19,880.95 is: 29,812.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,812.19 : 104,687.22 = 19,880.95 : x
  2. Step 2: Convert to fraction form
    69,812.19/104,687.22 = 19,880.95/x
  3. Step 3: Cross multiply
    69,812.19x = 104,687.22 × 19,880.95
  4. Step 4: Simplify right side
    69,812.19x = 2,081,281,386.46
  5. Step 5: Solve for x
    x = 2,081,281,386.46/69,812.19
  6. Step 6: Final answer
    x = 29,812.58

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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.