Home / 74,485.35-111,729.24-18,325.62

Finding the Fourth Proportional to 74,485.35, 111,729.24 and 18,325.62

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Solution

The fourth proportional to 74,485.35, 111,729.24 and 18,325.62 is: 27,488.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,485.35 : 111,729.24 = 18,325.62 : x
  2. Step 2: Convert to fraction form
    74,485.35/111,729.24 = 18,325.62/x
  3. Step 3: Cross multiply
    74,485.35x = 111,729.24 × 18,325.62
  4. Step 4: Simplify right side
    74,485.35x = 2,047,507,595.13
  5. Step 5: Solve for x
    x = 2,047,507,595.13/74,485.35
  6. Step 6: Final answer
    x = 27,488.73

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1.5x scale

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.