Home / 85,883.18-128,825.66-23,553.68

Finding the Fourth Proportional to 85,883.18, 128,825.66 and 23,553.68

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Solution

The fourth proportional to 85,883.18, 128,825.66 and 23,553.68 is: 35,330.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,883.18 : 128,825.66 = 23,553.68 : x
  2. Step 2: Convert to fraction form
    85,883.18/128,825.66 = 23,553.68/x
  3. Step 3: Cross multiply
    85,883.18x = 128,825.66 × 23,553.68
  4. Step 4: Simplify right side
    85,883.18x = 3,034,317,786.18
  5. Step 5: Solve for x
    x = 3,034,317,786.18/85,883.18
  6. Step 6: Final answer
    x = 35,330.76

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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.