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Finding the Fourth Proportional to 70,949.76, 98,333.31 and 69,621.16

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Solution

The fourth proportional to 70,949.76, 98,333.31 and 69,621.16 is: 96,491.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,949.76 : 98,333.31 = 69,621.16 : x
  2. Step 2: Convert to fraction form
    70,949.76/98,333.31 = 69,621.16/x
  3. Step 3: Cross multiply
    70,949.76x = 98,333.31 × 69,621.16
  4. Step 4: Simplify right side
    70,949.76x = 6,846,078,601.93
  5. Step 5: Solve for x
    x = 6,846,078,601.93/70,949.76
  6. Step 6: Final answer
    x = 96,491.92

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.