Home / 103,045.20-154,553.40-32,931.60

Finding the Fourth Proportional to 103,045.20, 154,553.40 and 32,931.60

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Solution

The fourth proportional to 103,045.20, 154,553.40 and 32,931.60 is: 49,392.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,045.20 : 154,553.40 = 32,931.60 : x
  2. Step 2: Convert to fraction form
    103,045.20/154,553.40 = 32,931.60/x
  3. Step 3: Cross multiply
    103,045.20x = 154,553.40 × 32,931.60
  4. Step 4: Simplify right side
    103,045.20x = 5,089,690,747.44
  5. Step 5: Solve for x
    x = 5,089,690,747.44/103,045.20
  6. Step 6: Final answer
    x = 49,392.80

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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.