Home / 71,039.21-98,033.90-39,207.88

Finding the Fourth Proportional to 71,039.21, 98,033.90 and 39,207.88

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Solution

The fourth proportional to 71,039.21, 98,033.90 and 39,207.88 is: 54,106.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,039.21 : 98,033.90 = 39,207.88 : x
  2. Step 2: Convert to fraction form
    71,039.21/98,033.90 = 39,207.88/x
  3. Step 3: Cross multiply
    71,039.21x = 98,033.90 × 39,207.88
  4. Step 4: Simplify right side
    71,039.21x = 3,843,700,896.96
  5. Step 5: Solve for x
    x = 3,843,700,896.96/71,039.21
  6. Step 6: Final answer
    x = 54,106.76

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1.5x scale

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.