Home / 64,112.10-96,147.63-21,408.36

Finding the Fourth Proportional to 64,112.10, 96,147.63 and 21,408.36

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Solution

The fourth proportional to 64,112.10, 96,147.63 and 21,408.36 is: 32,105.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,112.10 : 96,147.63 = 21,408.36 : x
  2. Step 2: Convert to fraction form
    64,112.10/96,147.63 = 21,408.36/x
  3. Step 3: Cross multiply
    64,112.10x = 96,147.63 × 21,408.36
  4. Step 4: Simplify right side
    64,112.10x = 2,058,363,076.19
  5. Step 5: Solve for x
    x = 2,058,363,076.19/64,112.10
  6. Step 6: Final answer
    x = 32,105.69

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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.