Home / 86,621.58-119,538.71-50,812.20

Finding the Fourth Proportional to 86,621.58, 119,538.71 and 50,812.20

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Solution

The fourth proportional to 86,621.58, 119,538.71 and 50,812.20 is: 70,121.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,621.58 : 119,538.71 = 50,812.20 : x
  2. Step 2: Convert to fraction form
    86,621.58/119,538.71 = 50,812.20/x
  3. Step 3: Cross multiply
    86,621.58x = 119,538.71 × 50,812.20
  4. Step 4: Simplify right side
    86,621.58x = 6,074,024,586.20
  5. Step 5: Solve for x
    x = 6,074,024,586.20/86,621.58
  6. Step 6: Final answer
    x = 70,121.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.