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Finding the Fourth Proportional to 77,084.80, 115,627.20 and 50,819.20

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Solution

The fourth proportional to 77,084.80, 115,627.20 and 50,819.20 is: 76,228.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,084.80 : 115,627.20 = 50,819.20 : x
  2. Step 2: Convert to fraction form
    77,084.80/115,627.20 = 50,819.20/x
  3. Step 3: Cross multiply
    77,084.80x = 115,627.20 × 50,819.20
  4. Step 4: Simplify right side
    77,084.80x = 5,876,081,802.24
  5. Step 5: Solve for x
    x = 5,876,081,802.24/77,084.80
  6. Step 6: Final answer
    x = 76,228.80

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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.