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Finding the Fourth Proportional to 72,524.88, 108,797.04 and 30,398.40

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Solution

The fourth proportional to 72,524.88, 108,797.04 and 30,398.40 is: 45,601.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,524.88 : 108,797.04 = 30,398.40 : x
  2. Step 2: Convert to fraction form
    72,524.88/108,797.04 = 30,398.40/x
  3. Step 3: Cross multiply
    72,524.88x = 108,797.04 × 30,398.40
  4. Step 4: Simplify right side
    72,524.88x = 3,307,255,940.74
  5. Step 5: Solve for x
    x = 3,307,255,940.74/72,524.88
  6. Step 6: Final answer
    x = 45,601.67

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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.