Home / 93,621.38-129,196.68-51,179.78

Finding the Fourth Proportional to 93,621.38, 129,196.68 and 51,179.78

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Solution

The fourth proportional to 93,621.38, 129,196.68 and 51,179.78 is: 70,627.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,621.38 : 129,196.68 = 51,179.78 : x
  2. Step 2: Convert to fraction form
    93,621.38/129,196.68 = 51,179.78/x
  3. Step 3: Cross multiply
    93,621.38x = 129,196.68 × 51,179.78
  4. Step 4: Simplify right side
    93,621.38x = 6,612,257,659.13
  5. Step 5: Solve for x
    x = 6,612,257,659.13/93,621.38
  6. Step 6: Final answer
    x = 70,627.65

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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.