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Finding the Fourth Proportional to 101,975.88, 152,979.40 and 52,028.76

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Solution

The fourth proportional to 101,975.88, 152,979.40 and 52,028.76 is: 78,051.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,975.88 : 152,979.40 = 52,028.76 : x
  2. Step 2: Convert to fraction form
    101,975.88/152,979.40 = 52,028.76/x
  3. Step 3: Cross multiply
    101,975.88x = 152,979.40 × 52,028.76
  4. Step 4: Simplify right side
    101,975.88x = 7,959,328,487.54
  5. Step 5: Solve for x
    x = 7,959,328,487.54/101,975.88
  6. Step 6: Final answer
    x = 78,051.09

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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.