Home / 88,668.45-122,360.76-48,381.21

Finding the Fourth Proportional to 88,668.45, 122,360.76 and 48,381.21

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Solution

The fourth proportional to 88,668.45, 122,360.76 and 48,381.21 is: 66,765.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,668.45 : 122,360.76 = 48,381.21 : x
  2. Step 2: Convert to fraction form
    88,668.45/122,360.76 = 48,381.21/x
  3. Step 3: Cross multiply
    88,668.45x = 122,360.76 × 48,381.21
  4. Step 4: Simplify right side
    88,668.45x = 5,919,961,625.32
  5. Step 5: Solve for x
    x = 5,919,961,625.32/88,668.45
  6. Step 6: Final answer
    x = 66,765.14

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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.