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Finding the Fourth Proportional to 72,952.84, 100,682.67 and 42,763.54

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Solution

The fourth proportional to 72,952.84, 100,682.67 and 42,763.54 is: 59,018.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,952.84 : 100,682.67 = 42,763.54 : x
  2. Step 2: Convert to fraction form
    72,952.84/100,682.67 = 42,763.54/x
  3. Step 3: Cross multiply
    72,952.84x = 100,682.67 × 42,763.54
  4. Step 4: Simplify right side
    72,952.84x = 4,305,546,882.44
  5. Step 5: Solve for x
    x = 4,305,546,882.44/72,952.84
  6. Step 6: Final answer
    x = 59,018.22

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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.