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Finding the Fourth Proportional to 84,654.72, 127,001.21 and 42,554.97

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Solution

The fourth proportional to 84,654.72, 127,001.21 and 42,554.97 is: 63,842.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,654.72 : 127,001.21 = 42,554.97 : x
  2. Step 2: Convert to fraction form
    84,654.72/127,001.21 = 42,554.97/x
  3. Step 3: Cross multiply
    84,654.72x = 127,001.21 × 42,554.97
  4. Step 4: Simplify right side
    84,654.72x = 5,404,531,833.73
  5. Step 5: Solve for x
    x = 5,404,531,833.73/84,654.72
  6. Step 6: Final answer
    x = 63,842.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.