Home / 86,185.50-129,285.81-23,856.54

Finding the Fourth Proportional to 86,185.50, 129,285.81 and 23,856.54

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Solution

The fourth proportional to 86,185.50, 129,285.81 and 23,856.54 is: 35,786.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,185.50 : 129,285.81 = 23,856.54 : x
  2. Step 2: Convert to fraction form
    86,185.50/129,285.81 = 23,856.54/x
  3. Step 3: Cross multiply
    86,185.50x = 129,285.81 × 23,856.54
  4. Step 4: Simplify right side
    86,185.50x = 3,084,312,097.70
  5. Step 5: Solve for x
    x = 3,084,312,097.70/86,185.50
  6. Step 6: Final answer
    x = 35,786.90

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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.