Home / 66,986.81-100,503.09-41,996.69

Finding the Fourth Proportional to 66,986.81, 100,503.09 and 41,996.69

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Solution

The fourth proportional to 66,986.81, 100,503.09 and 41,996.69 is: 63,009.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,986.81 : 100,503.09 = 41,996.69 : x
  2. Step 2: Convert to fraction form
    66,986.81/100,503.09 = 41,996.69/x
  3. Step 3: Cross multiply
    66,986.81x = 100,503.09 × 41,996.69
  4. Step 4: Simplify right side
    66,986.81x = 4,220,796,612.26
  5. Step 5: Solve for x
    x = 4,220,796,612.26/66,986.81
  6. Step 6: Final answer
    x = 63,009.37

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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.