Home / 86,298.69-129,453.62-27,136.65

Finding the Fourth Proportional to 86,298.69, 129,453.62 and 27,136.65

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Solution

The fourth proportional to 86,298.69, 129,453.62 and 27,136.65 is: 40,706.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,298.69 : 129,453.62 = 27,136.65 : x
  2. Step 2: Convert to fraction form
    86,298.69/129,453.62 = 27,136.65/x
  3. Step 3: Cross multiply
    86,298.69x = 129,453.62 × 27,136.65
  4. Step 4: Simplify right side
    86,298.69x = 3,512,937,441.49
  5. Step 5: Solve for x
    x = 3,512,937,441.49/86,298.69
  6. Step 6: Final answer
    x = 40,706.73

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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.