Home / 76,274.60-114,399.66-20,857.64

Finding the Fourth Proportional to 76,274.60, 114,399.66 and 20,857.64

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Solution

The fourth proportional to 76,274.60, 114,399.66 and 20,857.64 is: 31,283.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,274.60 : 114,399.66 = 20,857.64 : x
  2. Step 2: Convert to fraction form
    76,274.60/114,399.66 = 20,857.64/x
  3. Step 3: Cross multiply
    76,274.60x = 114,399.66 × 20,857.64
  4. Step 4: Simplify right side
    76,274.60x = 2,386,106,924.40
  5. Step 5: Solve for x
    x = 2,386,106,924.40/76,274.60
  6. Step 6: Final answer
    x = 31,283.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.