Home / 74,823.60-111,911.40-66,982.80

Finding the Fourth Proportional to 74,823.60, 111,911.40 and 66,982.80

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Solution

The fourth proportional to 74,823.60, 111,911.40 and 66,982.80 is: 100,184.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,823.60 : 111,911.40 = 66,982.80 : x
  2. Step 2: Convert to fraction form
    74,823.60/111,911.40 = 66,982.80/x
  3. Step 3: Cross multiply
    74,823.60x = 111,911.40 × 66,982.80
  4. Step 4: Simplify right side
    74,823.60x = 7,496,138,923.92
  5. Step 5: Solve for x
    x = 7,496,138,923.92/74,823.60
  6. Step 6: Final answer
    x = 100,184.15

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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.