Home / 68,421.90-94,395.36-39,736.68

Finding the Fourth Proportional to 68,421.90, 94,395.36 and 39,736.68

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Solution

The fourth proportional to 68,421.90, 94,395.36 and 39,736.68 is: 54,821.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,421.90 : 94,395.36 = 39,736.68 : x
  2. Step 2: Convert to fraction form
    68,421.90/94,395.36 = 39,736.68/x
  3. Step 3: Cross multiply
    68,421.90x = 94,395.36 × 39,736.68
  4. Step 4: Simplify right side
    68,421.90x = 3,750,958,213.80
  5. Step 5: Solve for x
    x = 3,750,958,213.80/68,421.90
  6. Step 6: Final answer
    x = 54,821.02

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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.