Home / 74,189.66-111,315.33-40,907.03

Finding the Fourth Proportional to 74,189.66, 111,315.33 and 40,907.03

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Solution

The fourth proportional to 74,189.66, 111,315.33 and 40,907.03 is: 61,377.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,189.66 : 111,315.33 = 40,907.03 : x
  2. Step 2: Convert to fraction form
    74,189.66/111,315.33 = 40,907.03/x
  3. Step 3: Cross multiply
    74,189.66x = 111,315.33 × 40,907.03
  4. Step 4: Simplify right side
    74,189.66x = 4,553,578,987.19
  5. Step 5: Solve for x
    x = 4,553,578,987.19/74,189.66
  6. Step 6: Final answer
    x = 61,377.55

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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.