Home / 85,811.47-128,717.24-23,481.97

Finding the Fourth Proportional to 85,811.47, 128,717.24 and 23,481.97

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Solution

The fourth proportional to 85,811.47, 128,717.24 and 23,481.97 is: 35,222.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,811.47 : 128,717.24 = 23,481.97 : x
  2. Step 2: Convert to fraction form
    85,811.47/128,717.24 = 23,481.97/x
  3. Step 3: Cross multiply
    85,811.47x = 128,717.24 × 23,481.97
  4. Step 4: Simplify right side
    85,811.47x = 3,022,533,928.96
  5. Step 5: Solve for x
    x = 3,022,533,928.96/85,811.47
  6. Step 6: Final answer
    x = 35,222.96

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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.