Home / 68,144.40-94,035.60-39,459.06

Finding the Fourth Proportional to 68,144.40, 94,035.60 and 39,459.06

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Solution

The fourth proportional to 68,144.40, 94,035.60 and 39,459.06 is: 54,451.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,144.40 : 94,035.60 = 39,459.06 : x
  2. Step 2: Convert to fraction form
    68,144.40/94,035.60 = 39,459.06/x
  3. Step 3: Cross multiply
    68,144.40x = 94,035.60 × 39,459.06
  4. Step 4: Simplify right side
    68,144.40x = 3,710,556,382.54
  5. Step 5: Solve for x
    x = 3,710,556,382.54/68,144.40
  6. Step 6: Final answer
    x = 54,451.38

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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.