Home / 86,817.50-130,231.30-33,509.78

Finding the Fourth Proportional to 86,817.50, 130,231.30 and 33,509.78

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Solution

The fourth proportional to 86,817.50, 130,231.30 and 33,509.78 is: 50,266.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,817.50 : 130,231.30 = 33,509.78 : x
  2. Step 2: Convert to fraction form
    86,817.50/130,231.30 = 33,509.78/x
  3. Step 3: Cross multiply
    86,817.50x = 130,231.30 × 33,509.78
  4. Step 4: Simplify right side
    86,817.50x = 4,364,022,698.10
  5. Step 5: Solve for x
    x = 4,364,022,698.10/86,817.50
  6. Step 6: Final answer
    x = 50,266.62

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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.