Home / 74,645.12-111,816.48-34,607.72

Finding the Fourth Proportional to 74,645.12, 111,816.48 and 34,607.72

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Solution

The fourth proportional to 74,645.12, 111,816.48 and 34,607.72 is: 51,841.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,645.12 : 111,816.48 = 34,607.72 : x
  2. Step 2: Convert to fraction form
    74,645.12/111,816.48 = 34,607.72/x
  3. Step 3: Cross multiply
    74,645.12x = 111,816.48 × 34,607.72
  4. Step 4: Simplify right side
    74,645.12x = 3,869,713,431.23
  5. Step 5: Solve for x
    x = 3,869,713,431.23/74,645.12
  6. Step 6: Final answer
    x = 51,841.48

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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.