Home / 42,845.76-64,260-11,676.96

Finding the Fourth Proportional to 42,845.76, 64,260 and 11,676.96

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Solution

The fourth proportional to 42,845.76, 64,260 and 11,676.96 is: 17,513.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,845.76 : 64,260 = 11,676.96 : x
  2. Step 2: Convert to fraction form
    42,845.76/64,260 = 11,676.96/x
  3. Step 3: Cross multiply
    42,845.76x = 64,260 × 11,676.96
  4. Step 4: Simplify right side
    42,845.76x = 750,361,449.60
  5. Step 5: Solve for x
    x = 750,361,449.60/42,845.76
  6. Step 6: Final answer
    x = 17,513.09

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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.