Home / 71,239.56-98,311.66-39,408.32

Finding the Fourth Proportional to 71,239.56, 98,311.66 and 39,408.32

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Solution

The fourth proportional to 71,239.56, 98,311.66 and 39,408.32 is: 54,384.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,239.56 : 98,311.66 = 39,408.32 : x
  2. Step 2: Convert to fraction form
    71,239.56/98,311.66 = 39,408.32/x
  3. Step 3: Cross multiply
    71,239.56x = 98,311.66 × 39,408.32
  4. Step 4: Simplify right side
    71,239.56x = 3,874,297,357.01
  5. Step 5: Solve for x
    x = 3,874,297,357.01/71,239.56
  6. Step 6: Final answer
    x = 54,384.07

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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.