Home / 52,080.80-78,121.20-17,021.60

Finding the Fourth Proportional to 52,080.80, 78,121.20 and 17,021.60

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Solution

The fourth proportional to 52,080.80, 78,121.20 and 17,021.60 is: 25,532.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,080.80 : 78,121.20 = 17,021.60 : x
  2. Step 2: Convert to fraction form
    52,080.80/78,121.20 = 17,021.60/x
  3. Step 3: Cross multiply
    52,080.80x = 78,121.20 × 17,021.60
  4. Step 4: Simplify right side
    52,080.80x = 1,329,747,817.92
  5. Step 5: Solve for x
    x = 1,329,747,817.92/52,080.80
  6. Step 6: Final answer
    x = 25,532.40

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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.