Home / 83,851.60-125,771.64-31,236.88

Finding the Fourth Proportional to 83,851.60, 125,771.64 and 31,236.88

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Solution

The fourth proportional to 83,851.60, 125,771.64 and 31,236.88 is: 46,853.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,851.60 : 125,771.64 = 31,236.88 : x
  2. Step 2: Convert to fraction form
    83,851.60/125,771.64 = 31,236.88/x
  3. Step 3: Cross multiply
    83,851.60x = 125,771.64 × 31,236.88
  4. Step 4: Simplify right side
    83,851.60x = 3,928,713,626.08
  5. Step 5: Solve for x
    x = 3,928,713,626.08/83,851.60
  6. Step 6: Final answer
    x = 46,853.17

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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.