Home / 85,056.48-117,121.68-80,069.04

Finding the Fourth Proportional to 85,056.48, 117,121.68 and 80,069.04

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Solution

The fourth proportional to 85,056.48, 117,121.68 and 80,069.04 is: 110,254.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,056.48 : 117,121.68 = 80,069.04 : x
  2. Step 2: Convert to fraction form
    85,056.48/117,121.68 = 80,069.04/x
  3. Step 3: Cross multiply
    85,056.48x = 117,121.68 × 80,069.04
  4. Step 4: Simplify right side
    85,056.48x = 9,377,820,480.79
  5. Step 5: Solve for x
    x = 9,377,820,480.79/85,056.48
  6. Step 6: Final answer
    x = 110,254.04

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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.