Home / 85,212.80-117,594.08-48,911.32

Finding the Fourth Proportional to 85,212.80, 117,594.08 and 48,911.32

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Solution

The fourth proportional to 85,212.80, 117,594.08 and 48,911.32 is: 67,497.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,212.80 : 117,594.08 = 48,911.32 : x
  2. Step 2: Convert to fraction form
    85,212.80/117,594.08 = 48,911.32/x
  3. Step 3: Cross multiply
    85,212.80x = 117,594.08 × 48,911.32
  4. Step 4: Simplify right side
    85,212.80x = 5,751,681,676.99
  5. Step 5: Solve for x
    x = 5,751,681,676.99/85,212.80
  6. Step 6: Final answer
    x = 67,497.86

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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.