Home / 55,117.20-76,067.64-31,241.28

Finding the Fourth Proportional to 55,117.20, 76,067.64 and 31,241.28

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Solution

The fourth proportional to 55,117.20, 76,067.64 and 31,241.28 is: 43,116.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,117.20 : 76,067.64 = 31,241.28 : x
  2. Step 2: Convert to fraction form
    55,117.20/76,067.64 = 31,241.28/x
  3. Step 3: Cross multiply
    55,117.20x = 76,067.64 × 31,241.28
  4. Step 4: Simplify right side
    55,117.20x = 2,376,450,440.18
  5. Step 5: Solve for x
    x = 2,376,450,440.18/55,117.20
  6. Step 6: Final answer
    x = 43,116.31

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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.