Home / 72,665.71-108,997.48-20,074.03

Finding the Fourth Proportional to 72,665.71, 108,997.48 and 20,074.03

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Solution

The fourth proportional to 72,665.71, 108,997.48 and 20,074.03 is: 30,110.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,665.71 : 108,997.48 = 20,074.03 : x
  2. Step 2: Convert to fraction form
    72,665.71/108,997.48 = 20,074.03/x
  3. Step 3: Cross multiply
    72,665.71x = 108,997.48 × 20,074.03
  4. Step 4: Simplify right side
    72,665.71x = 2,188,018,088.27
  5. Step 5: Solve for x
    x = 2,188,018,088.27/72,665.71
  6. Step 6: Final answer
    x = 30,110.74

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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.