Home / 86,953.81-119,996.08-49,231.57

Finding the Fourth Proportional to 86,953.81, 119,996.08 and 49,231.57

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Solution

The fourth proportional to 86,953.81, 119,996.08 and 49,231.57 is: 67,939.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,953.81 : 119,996.08 = 49,231.57 : x
  2. Step 2: Convert to fraction form
    86,953.81/119,996.08 = 49,231.57/x
  3. Step 3: Cross multiply
    86,953.81x = 119,996.08 × 49,231.57
  4. Step 4: Simplify right side
    86,953.81x = 5,907,595,412.25
  5. Step 5: Solve for x
    x = 5,907,595,412.25/86,953.81
  6. Step 6: Final answer
    x = 67,939.47

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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.