Home / 68,828.46-103,280.31-26,710.21

Finding the Fourth Proportional to 68,828.46, 103,280.31 and 26,710.21

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Solution

The fourth proportional to 68,828.46, 103,280.31 and 26,710.21 is: 40,079.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,828.46 : 103,280.31 = 26,710.21 : x
  2. Step 2: Convert to fraction form
    68,828.46/103,280.31 = 26,710.21/x
  3. Step 3: Cross multiply
    68,828.46x = 103,280.31 × 26,710.21
  4. Step 4: Simplify right side
    68,828.46x = 2,758,638,768.97
  5. Step 5: Solve for x
    x = 2,758,638,768.97/68,828.46
  6. Step 6: Final answer
    x = 40,079.91

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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.