Home / 86,136.90-129,152.43-33,485.01

Finding the Fourth Proportional to 86,136.90, 129,152.43 and 33,485.01

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Solution

The fourth proportional to 86,136.90, 129,152.43 and 33,485.01 is: 50,206.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,136.90 : 129,152.43 = 33,485.01 : x
  2. Step 2: Convert to fraction form
    86,136.90/129,152.43 = 33,485.01/x
  3. Step 3: Cross multiply
    86,136.90x = 129,152.43 × 33,485.01
  4. Step 4: Simplify right side
    86,136.90x = 4,324,670,410.07
  5. Step 5: Solve for x
    x = 4,324,670,410.07/86,136.90
  6. Step 6: Final answer
    x = 50,206.94

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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.