Home / 69,787.31-104,721.96-25,416.72

Finding the Fourth Proportional to 69,787.31, 104,721.96 and 25,416.72

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Solution

The fourth proportional to 69,787.31, 104,721.96 and 25,416.72 is: 38,140.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,787.31 : 104,721.96 = 25,416.72 : x
  2. Step 2: Convert to fraction form
    69,787.31/104,721.96 = 25,416.72/x
  3. Step 3: Cross multiply
    69,787.31x = 104,721.96 × 25,416.72
  4. Step 4: Simplify right side
    69,787.31x = 2,661,688,735.17
  5. Step 5: Solve for x
    x = 2,661,688,735.17/69,787.31
  6. Step 6: Final answer
    x = 38,140.01

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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.