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Finding the Fourth Proportional to 101,752.98, 152,720.94 and 54,408.54

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Solution

The fourth proportional to 101,752.98, 152,720.94 and 54,408.54 is: 81,661.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,752.98 : 152,720.94 = 54,408.54 : x
  2. Step 2: Convert to fraction form
    101,752.98/152,720.94 = 54,408.54/x
  3. Step 3: Cross multiply
    101,752.98x = 152,720.94 × 54,408.54
  4. Step 4: Simplify right side
    101,752.98x = 8,309,323,004.16
  5. Step 5: Solve for x
    x = 8,309,323,004.16/101,752.98
  6. Step 6: Final answer
    x = 81,661.72

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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.