Home / 68,400.15-94,395.86-40,107.99

Finding the Fourth Proportional to 68,400.15, 94,395.86 and 40,107.99

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Solution

The fourth proportional to 68,400.15, 94,395.86 and 40,107.99 is: 55,351.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,400.15 : 94,395.86 = 40,107.99 : x
  2. Step 2: Convert to fraction form
    68,400.15/94,395.86 = 40,107.99/x
  3. Step 3: Cross multiply
    68,400.15x = 94,395.86 × 40,107.99
  4. Step 4: Simplify right side
    68,400.15x = 3,786,028,008.38
  5. Step 5: Solve for x
    x = 3,786,028,008.38/68,400.15
  6. Step 6: Final answer
    x = 55,351.17

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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.