Home / 55,414.40-76,470.84-31,215.44

Finding the Fourth Proportional to 55,414.40, 76,470.84 and 31,215.44

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Solution

The fourth proportional to 55,414.40, 76,470.84 and 31,215.44 is: 43,076.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,414.40 : 76,470.84 = 31,215.44 : x
  2. Step 2: Convert to fraction form
    55,414.40/76,470.84 = 31,215.44/x
  3. Step 3: Cross multiply
    55,414.40x = 76,470.84 × 31,215.44
  4. Step 4: Simplify right side
    55,414.40x = 2,387,070,917.77
  5. Step 5: Solve for x
    x = 2,387,070,917.77/55,414.40
  6. Step 6: Final answer
    x = 43,076.73

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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.