Home / 55,015.32-75,920.58-31,141.56

Finding the Fourth Proportional to 55,015.32, 75,920.58 and 31,141.56

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Solution

The fourth proportional to 55,015.32, 75,920.58 and 31,141.56 is: 42,975.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,015.32 : 75,920.58 = 31,141.56 : x
  2. Step 2: Convert to fraction form
    55,015.32/75,920.58 = 31,141.56/x
  3. Step 3: Cross multiply
    55,015.32x = 75,920.58 × 31,141.56
  4. Step 4: Simplify right side
    55,015.32x = 2,364,285,297.30
  5. Step 5: Solve for x
    x = 2,364,285,297.30/55,015.32
  6. Step 6: Final answer
    x = 42,975.03

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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.