Home / 81,006.04-121,508.22-27,697.54

Finding the Fourth Proportional to 81,006.04, 121,508.22 and 27,697.54

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Solution

The fourth proportional to 81,006.04, 121,508.22 and 27,697.54 is: 41,546.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,006.04 : 121,508.22 = 27,697.54 : x
  2. Step 2: Convert to fraction form
    81,006.04/121,508.22 = 27,697.54/x
  3. Step 3: Cross multiply
    81,006.04x = 121,508.22 × 27,697.54
  4. Step 4: Simplify right side
    81,006.04x = 3,365,478,783.78
  5. Step 5: Solve for x
    x = 3,365,478,783.78/81,006.04
  6. Step 6: Final answer
    x = 41,546.02

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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.