Home / 74,448.35-111,718.65-30,075.48

Finding the Fourth Proportional to 74,448.35, 111,718.65 and 30,075.48

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Solution

The fourth proportional to 74,448.35, 111,718.65 and 30,075.48 is: 45,131.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,448.35 : 111,718.65 = 30,075.48 : x
  2. Step 2: Convert to fraction form
    74,448.35/111,718.65 = 30,075.48/x
  3. Step 3: Cross multiply
    74,448.35x = 111,718.65 × 30,075.48
  4. Step 4: Simplify right side
    74,448.35x = 3,359,992,023.70
  5. Step 5: Solve for x
    x = 3,359,992,023.70/74,448.35
  6. Step 6: Final answer
    x = 45,131.86

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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.