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Finding the Fourth Proportional to 93,019.88, 128,366.78 and 50,578.44

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Solution

The fourth proportional to 93,019.88, 128,366.78 and 50,578.44 is: 69,797.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,019.88 : 128,366.78 = 50,578.44 : x
  2. Step 2: Convert to fraction form
    93,019.88/128,366.78 = 50,578.44/x
  3. Step 3: Cross multiply
    93,019.88x = 128,366.78 × 50,578.44
  4. Step 4: Simplify right side
    93,019.88x = 6,492,591,480.22
  5. Step 5: Solve for x
    x = 6,492,591,480.22/93,019.88
  6. Step 6: Final answer
    x = 69,797.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.