Home / 74,029.12-111,054.66-21,432.04

Finding the Fourth Proportional to 74,029.12, 111,054.66 and 21,432.04

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Solution

The fourth proportional to 74,029.12, 111,054.66 and 21,432.04 is: 32,151.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,029.12 : 111,054.66 = 21,432.04 : x
  2. Step 2: Convert to fraction form
    74,029.12/111,054.66 = 21,432.04/x
  3. Step 3: Cross multiply
    74,029.12x = 111,054.66 × 21,432.04
  4. Step 4: Simplify right side
    74,029.12x = 2,380,127,915.31
  5. Step 5: Solve for x
    x = 2,380,127,915.31/74,029.12
  6. Step 6: Final answer
    x = 32,151.24

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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.