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Finding the Fourth Proportional to 52,080.69, 78,121.14 and 18,824.24

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Solution

The fourth proportional to 52,080.69, 78,121.14 and 18,824.24 is: 28,236.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,080.69 : 78,121.14 = 18,824.24 : x
  2. Step 2: Convert to fraction form
    52,080.69/78,121.14 = 18,824.24/x
  3. Step 3: Cross multiply
    52,080.69x = 78,121.14 × 18,824.24
  4. Step 4: Simplify right side
    52,080.69x = 1,470,571,088.43
  5. Step 5: Solve for x
    x = 1,470,571,088.43/52,080.69
  6. Step 6: Final answer
    x = 28,236.40

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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.