Home / 68,485.68-94,508.10-40,190.76

Finding the Fourth Proportional to 68,485.68, 94,508.10 and 40,190.76

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Solution

The fourth proportional to 68,485.68, 94,508.10 and 40,190.76 is: 55,461.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,485.68 : 94,508.10 = 40,190.76 : x
  2. Step 2: Convert to fraction form
    68,485.68/94,508.10 = 40,190.76/x
  3. Step 3: Cross multiply
    68,485.68x = 94,508.10 × 40,190.76
  4. Step 4: Simplify right side
    68,485.68x = 3,798,352,365.16
  5. Step 5: Solve for x
    x = 3,798,352,365.16/68,485.68
  6. Step 6: Final answer
    x = 55,461.99

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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.