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Finding the Fourth Proportional to 68,670.30, 94,774.14 and 38,457.30

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Solution

The fourth proportional to 68,670.30, 94,774.14 and 38,457.30 is: 53,076.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,670.30 : 94,774.14 = 38,457.30 : x
  2. Step 2: Convert to fraction form
    68,670.30/94,774.14 = 38,457.30/x
  3. Step 3: Cross multiply
    68,670.30x = 94,774.14 × 38,457.30
  4. Step 4: Simplify right side
    68,670.30x = 3,644,757,534.22
  5. Step 5: Solve for x
    x = 3,644,757,534.22/68,670.30
  6. Step 6: Final answer
    x = 53,076.18

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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.