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Finding the Fourth Proportional to 52,654.54, 72,663.06 and 28,781.20

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Solution

The fourth proportional to 52,654.54, 72,663.06 and 28,781.20 is: 39,717.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,654.54 : 72,663.06 = 28,781.20 : x
  2. Step 2: Convert to fraction form
    52,654.54/72,663.06 = 28,781.20/x
  3. Step 3: Cross multiply
    52,654.54x = 72,663.06 × 28,781.20
  4. Step 4: Simplify right side
    52,654.54x = 2,091,330,062.47
  5. Step 5: Solve for x
    x = 2,091,330,062.47/52,654.54
  6. Step 6: Final answer
    x = 39,717.94

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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.