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Finding the Fourth Proportional to 64,257.96, 96,401.04 and 19,277.40

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Solution

The fourth proportional to 64,257.96, 96,401.04 and 19,277.40 is: 28,920.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,257.96 : 96,401.04 = 19,277.40 : x
  2. Step 2: Convert to fraction form
    64,257.96/96,401.04 = 19,277.40/x
  3. Step 3: Cross multiply
    64,257.96x = 96,401.04 × 19,277.40
  4. Step 4: Simplify right side
    64,257.96x = 1,858,361,408.50
  5. Step 5: Solve for x
    x = 1,858,361,408.50/64,257.96
  6. Step 6: Final answer
    x = 28,920.33

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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.