Home / 86,819.35-130,136.76-41,812.65

Finding the Fourth Proportional to 86,819.35, 130,136.76 and 41,812.65

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Solution

The fourth proportional to 86,819.35, 130,136.76 and 41,812.65 is: 62,674.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,819.35 : 130,136.76 = 41,812.65 : x
  2. Step 2: Convert to fraction form
    86,819.35/130,136.76 = 41,812.65/x
  3. Step 3: Cross multiply
    86,819.35x = 130,136.76 × 41,812.65
  4. Step 4: Simplify right side
    86,819.35x = 5,441,362,798.01
  5. Step 5: Solve for x
    x = 5,441,362,798.01/86,819.35
  6. Step 6: Final answer
    x = 62,674.54

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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.