Home / 76,986.10-115,429.20-32,600.80

Finding the Fourth Proportional to 76,986.10, 115,429.20 and 32,600.80

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Solution

The fourth proportional to 76,986.10, 115,429.20 and 32,600.80 is: 48,880.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,986.10 : 115,429.20 = 32,600.80 : x
  2. Step 2: Convert to fraction form
    76,986.10/115,429.20 = 32,600.80/x
  3. Step 3: Cross multiply
    76,986.10x = 115,429.20 × 32,600.80
  4. Step 4: Simplify right side
    76,986.10x = 3,763,084,263.36
  5. Step 5: Solve for x
    x = 3,763,084,263.36/76,986.10
  6. Step 6: Final answer
    x = 48,880.05

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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.