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Finding the Fourth Proportional to 76,009.16, 104,922.24 and 68,037.60

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Solution

The fourth proportional to 76,009.16, 104,922.24 and 68,037.60 is: 93,918.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,009.16 : 104,922.24 = 68,037.60 : x
  2. Step 2: Convert to fraction form
    76,009.16/104,922.24 = 68,037.60/x
  3. Step 3: Cross multiply
    76,009.16x = 104,922.24 × 68,037.60
  4. Step 4: Simplify right side
    76,009.16x = 7,138,657,396.22
  5. Step 5: Solve for x
    x = 7,138,657,396.22/76,009.16
  6. Step 6: Final answer
    x = 93,918.38

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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.