Home / 68,208.50-94,128.73-39,530.30

Finding the Fourth Proportional to 68,208.50, 94,128.73 and 39,530.30

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Solution

The fourth proportional to 68,208.50, 94,128.73 and 39,530.30 is: 54,552.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,208.50 : 94,128.73 = 39,530.30 : x
  2. Step 2: Convert to fraction form
    68,208.50/94,128.73 = 39,530.30/x
  3. Step 3: Cross multiply
    68,208.50x = 94,128.73 × 39,530.30
  4. Step 4: Simplify right side
    68,208.50x = 3,720,936,588.41
  5. Step 5: Solve for x
    x = 3,720,936,588.41/68,208.50
  6. Step 6: Final answer
    x = 54,552.39

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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.