Home / 72,664.35-109,002.86-20,073.89

Finding the Fourth Proportional to 72,664.35, 109,002.86 and 20,073.89

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Solution

The fourth proportional to 72,664.35, 109,002.86 and 20,073.89 is: 30,112.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,664.35 : 109,002.86 = 20,073.89 : x
  2. Step 2: Convert to fraction form
    72,664.35/109,002.86 = 20,073.89/x
  3. Step 3: Cross multiply
    72,664.35x = 109,002.86 × 20,073.89
  4. Step 4: Simplify right side
    72,664.35x = 2,188,110,775.94
  5. Step 5: Solve for x
    x = 2,188,110,775.94/72,664.35
  6. Step 6: Final answer
    x = 30,112.58

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1.5x scale

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.