Home / 68,721.08-102,995.40-37,129.82

Finding the Fourth Proportional to 68,721.08, 102,995.40 and 37,129.82

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Solution

The fourth proportional to 68,721.08, 102,995.40 and 37,129.82 is: 55,648.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,721.08 : 102,995.40 = 37,129.82 : x
  2. Step 2: Convert to fraction form
    68,721.08/102,995.40 = 37,129.82/x
  3. Step 3: Cross multiply
    68,721.08x = 102,995.40 × 37,129.82
  4. Step 4: Simplify right side
    68,721.08x = 3,824,200,662.83
  5. Step 5: Solve for x
    x = 3,824,200,662.83/68,721.08
  6. Step 6: Final answer
    x = 55,648.15

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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.