Home / 82,824.64-114,273.12-74,841.28

Finding the Fourth Proportional to 82,824.64, 114,273.12 and 74,841.28

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Solution

The fourth proportional to 82,824.64, 114,273.12 and 74,841.28 is: 103,258.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,824.64 : 114,273.12 = 74,841.28 : x
  2. Step 2: Convert to fraction form
    82,824.64/114,273.12 = 74,841.28/x
  3. Step 3: Cross multiply
    82,824.64x = 114,273.12 × 74,841.28
  4. Step 4: Simplify right side
    82,824.64x = 8,552,346,570.39
  5. Step 5: Solve for x
    x = 8,552,346,570.39/82,824.64
  6. Step 6: Final answer
    x = 103,258.48

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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.