Home / 74,716.36-102,966.78-53,458.60

Finding the Fourth Proportional to 74,716.36, 102,966.78 and 53,458.60

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Solution

The fourth proportional to 74,716.36, 102,966.78 and 53,458.60 is: 73,671.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,716.36 : 102,966.78 = 53,458.60 : x
  2. Step 2: Convert to fraction form
    74,716.36/102,966.78 = 53,458.60/x
  3. Step 3: Cross multiply
    74,716.36x = 102,966.78 × 53,458.60
  4. Step 4: Simplify right side
    74,716.36x = 5,504,459,905.31
  5. Step 5: Solve for x
    x = 5,504,459,905.31/74,716.36
  6. Step 6: Final answer
    x = 73,671.41

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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.