Home / 74,122.16-111,204.02-29,780.04

Finding the Fourth Proportional to 74,122.16, 111,204.02 and 29,780.04

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Solution

The fourth proportional to 74,122.16, 111,204.02 and 29,780.04 is: 44,678.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,122.16 : 111,204.02 = 29,780.04 : x
  2. Step 2: Convert to fraction form
    74,122.16/111,204.02 = 29,780.04/x
  3. Step 3: Cross multiply
    74,122.16x = 111,204.02 × 29,780.04
  4. Step 4: Simplify right side
    74,122.16x = 3,311,660,014.86
  5. Step 5: Solve for x
    x = 3,311,660,014.86/74,122.16
  6. Step 6: Final answer
    x = 44,678.41

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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.