Home / 66,987.81-100,504.59-41,997.69

Finding the Fourth Proportional to 66,987.81, 100,504.59 and 41,997.69

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Solution

The fourth proportional to 66,987.81, 100,504.59 and 41,997.69 is: 63,010.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,987.81 : 100,504.59 = 41,997.69 : x
  2. Step 2: Convert to fraction form
    66,987.81/100,504.59 = 41,997.69/x
  3. Step 3: Cross multiply
    66,987.81x = 100,504.59 × 41,997.69
  4. Step 4: Simplify right side
    66,987.81x = 4,220,960,614.40
  5. Step 5: Solve for x
    x = 4,220,960,614.40/66,987.81
  6. Step 6: Final answer
    x = 63,010.88

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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.