Home / 86,839.99-119,861.72-49,136.11

Finding the Fourth Proportional to 86,839.99, 119,861.72 and 49,136.11

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Solution

The fourth proportional to 86,839.99, 119,861.72 and 49,136.11 is: 67,820.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,839.99 : 119,861.72 = 49,136.11 : x
  2. Step 2: Convert to fraction form
    86,839.99/119,861.72 = 49,136.11/x
  3. Step 3: Cross multiply
    86,839.99x = 119,861.72 × 49,136.11
  4. Step 4: Simplify right side
    86,839.99x = 5,889,538,413.03
  5. Step 5: Solve for x
    x = 5,889,538,413.03/86,839.99
  6. Step 6: Final answer
    x = 67,820.58

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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.