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Finding the Fourth Proportional to 68,127, 94,028.22 and 38,319

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Solution

The fourth proportional to 68,127, 94,028.22 and 38,319 is: 52,887.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,127 : 94,028.22 = 38,319 : x
  2. Step 2: Convert to fraction form
    68,127/94,028.22 = 38,319/x
  3. Step 3: Cross multiply
    68,127x = 94,028.22 × 38,319
  4. Step 4: Simplify right side
    68,127x = 3,603,067,362.18
  5. Step 5: Solve for x
    x = 3,603,067,362.18/68,127
  6. Step 6: Final answer
    x = 52,887.51

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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.