Home / 68,190.12-94,086.70-39,105.05

Finding the Fourth Proportional to 68,190.12, 94,086.70 and 39,105.05

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Solution

The fourth proportional to 68,190.12, 94,086.70 and 39,105.05 is: 53,955.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,190.12 : 94,086.70 = 39,105.05 : x
  2. Step 2: Convert to fraction form
    68,190.12/94,086.70 = 39,105.05/x
  3. Step 3: Cross multiply
    68,190.12x = 94,086.70 × 39,105.05
  4. Step 4: Simplify right side
    68,190.12x = 3,679,264,539.64
  5. Step 5: Solve for x
    x = 3,679,264,539.64/68,190.12
  6. Step 6: Final answer
    x = 53,955.98

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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.