Home / 72,507.13-108,765.88-30,344.76

Finding the Fourth Proportional to 72,507.13, 108,765.88 and 30,344.76

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Solution

The fourth proportional to 72,507.13, 108,765.88 and 30,344.76 is: 45,519.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,507.13 : 108,765.88 = 30,344.76 : x
  2. Step 2: Convert to fraction form
    72,507.13/108,765.88 = 30,344.76/x
  3. Step 3: Cross multiply
    72,507.13x = 108,765.88 × 30,344.76
  4. Step 4: Simplify right side
    72,507.13x = 3,300,474,524.79
  5. Step 5: Solve for x
    x = 3,300,474,524.79/72,507.13
  6. Step 6: Final answer
    x = 45,519.31

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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.