Home / 72,285.35-108,369.59-30,197.67

Finding the Fourth Proportional to 72,285.35, 108,369.59 and 30,197.67

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Solution

The fourth proportional to 72,285.35, 108,369.59 and 30,197.67 is: 45,272.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,285.35 : 108,369.59 = 30,197.67 : x
  2. Step 2: Convert to fraction form
    72,285.35/108,369.59 = 30,197.67/x
  3. Step 3: Cross multiply
    72,285.35x = 108,369.59 × 30,197.67
  4. Step 4: Simplify right side
    72,285.35x = 3,272,508,965.87
  5. Step 5: Solve for x
    x = 3,272,508,965.87/72,285.35
  6. Step 6: Final answer
    x = 45,272.09

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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.