Home / 74,530.56-111,765.76-30,149.12

Finding the Fourth Proportional to 74,530.56, 111,765.76 and 30,149.12

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Solution

The fourth proportional to 74,530.56, 111,765.76 and 30,149.12 is: 45,211.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,530.56 : 111,765.76 = 30,149.12 : x
  2. Step 2: Convert to fraction form
    74,530.56/111,765.76 = 30,149.12/x
  3. Step 3: Cross multiply
    74,530.56x = 111,765.76 × 30,149.12
  4. Step 4: Simplify right side
    74,530.56x = 3,369,639,310.13
  5. Step 5: Solve for x
    x = 3,369,639,310.13/74,530.56
  6. Step 6: Final answer
    x = 45,211.51

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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.