Home / 69,787.58-104,639.22-31,312.05

Finding the Fourth Proportional to 69,787.58, 104,639.22 and 31,312.05

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Solution

The fourth proportional to 69,787.58, 104,639.22 and 31,312.05 is: 46,949.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,787.58 : 104,639.22 = 31,312.05 : x
  2. Step 2: Convert to fraction form
    69,787.58/104,639.22 = 31,312.05/x
  3. Step 3: Cross multiply
    69,787.58x = 104,639.22 × 31,312.05
  4. Step 4: Simplify right side
    69,787.58x = 3,276,468,488.60
  5. Step 5: Solve for x
    x = 3,276,468,488.60/69,787.58
  6. Step 6: Final answer
    x = 46,949.17

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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.