Home / 74,538.16-111,729.46-30,195.52

Finding the Fourth Proportional to 74,538.16, 111,729.46 and 30,195.52

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Solution

The fourth proportional to 74,538.16, 111,729.46 and 30,195.52 is: 45,261.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,538.16 : 111,729.46 = 30,195.52 : x
  2. Step 2: Convert to fraction form
    74,538.16/111,729.46 = 30,195.52/x
  3. Step 3: Cross multiply
    74,538.16x = 111,729.46 × 30,195.52
  4. Step 4: Simplify right side
    74,538.16x = 3,373,729,144.02
  5. Step 5: Solve for x
    x = 3,373,729,144.02/74,538.16
  6. Step 6: Final answer
    x = 45,261.77

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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.