Home / 74,329.20-111,532.20-32,780.40

Finding the Fourth Proportional to 74,329.20, 111,532.20 and 32,780.40

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Solution

The fourth proportional to 74,329.20, 111,532.20 and 32,780.40 is: 49,187.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,329.20 : 111,532.20 = 32,780.40 : x
  2. Step 2: Convert to fraction form
    74,329.20/111,532.20 = 32,780.40/x
  3. Step 3: Cross multiply
    74,329.20x = 111,532.20 × 32,780.40
  4. Step 4: Simplify right side
    74,329.20x = 3,656,070,128.88
  5. Step 5: Solve for x
    x = 3,656,070,128.88/74,329.20
  6. Step 6: Final answer
    x = 49,187.54

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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.