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Finding the Fourth Proportional to 68,769, 94,902.66 and 38,961

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Solution

The fourth proportional to 68,769, 94,902.66 and 38,961 is: 53,767.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,769 : 94,902.66 = 38,961 : x
  2. Step 2: Convert to fraction form
    68,769/94,902.66 = 38,961/x
  3. Step 3: Cross multiply
    68,769x = 94,902.66 × 38,961
  4. Step 4: Simplify right side
    68,769x = 3,697,502,536.26
  5. Step 5: Solve for x
    x = 3,697,502,536.26/68,769
  6. Step 6: Final answer
    x = 53,767.00

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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.