Home / 72,828.45-100,502.97-40,997.43

Finding the Fourth Proportional to 72,828.45, 100,502.97 and 40,997.43

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Solution

The fourth proportional to 72,828.45, 100,502.97 and 40,997.43 is: 56,576.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,828.45 : 100,502.97 = 40,997.43 : x
  2. Step 2: Convert to fraction form
    72,828.45/100,502.97 = 40,997.43/x
  3. Step 3: Cross multiply
    72,828.45x = 100,502.97 × 40,997.43
  4. Step 4: Simplify right side
    72,828.45x = 4,120,363,477.37
  5. Step 5: Solve for x
    x = 4,120,363,477.37/72,828.45
  6. Step 6: Final answer
    x = 56,576.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.