Home / 74,525.78-111,788.55-30,152.87

Finding the Fourth Proportional to 74,525.78, 111,788.55 and 30,152.87

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Solution

The fourth proportional to 74,525.78, 111,788.55 and 30,152.87 is: 45,229.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,525.78 : 111,788.55 = 30,152.87 : x
  2. Step 2: Convert to fraction form
    74,525.78/111,788.55 = 30,152.87/x
  3. Step 3: Cross multiply
    74,525.78x = 111,788.55 × 30,152.87
  4. Step 4: Simplify right side
    74,525.78x = 3,370,745,895.11
  5. Step 5: Solve for x
    x = 3,370,745,895.11/74,525.78
  6. Step 6: Final answer
    x = 45,229.26

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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.