Home / 68,385.77-94,388.10-40,100.57

Finding the Fourth Proportional to 68,385.77, 94,388.10 and 40,100.57

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Solution

The fourth proportional to 68,385.77, 94,388.10 and 40,100.57 is: 55,348.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,385.77 : 94,388.10 = 40,100.57 : x
  2. Step 2: Convert to fraction form
    68,385.77/94,388.10 = 40,100.57/x
  3. Step 3: Cross multiply
    68,385.77x = 94,388.10 × 40,100.57
  4. Step 4: Simplify right side
    68,385.77x = 3,785,016,139.28
  5. Step 5: Solve for x
    x = 3,785,016,139.28/68,385.77
  6. Step 6: Final answer
    x = 55,348.01

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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.