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Finding the Fourth Proportional to 72,890.42, 109,348.04 and 33,450.89

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Solution

The fourth proportional to 72,890.42, 109,348.04 and 33,450.89 is: 50,182.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,890.42 : 109,348.04 = 33,450.89 : x
  2. Step 2: Convert to fraction form
    72,890.42/109,348.04 = 33,450.89/x
  3. Step 3: Cross multiply
    72,890.42x = 109,348.04 × 33,450.89
  4. Step 4: Simplify right side
    72,890.42x = 3,657,788,794.64
  5. Step 5: Solve for x
    x = 3,657,788,794.64/72,890.42
  6. Step 6: Final answer
    x = 50,182.03

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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.