Home / 55,351.68-76,382.88-31,480.32

Finding the Fourth Proportional to 55,351.68, 76,382.88 and 31,480.32

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Solution

The fourth proportional to 55,351.68, 76,382.88 and 31,480.32 is: 43,441.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,351.68 : 76,382.88 = 31,480.32 : x
  2. Step 2: Convert to fraction form
    55,351.68/76,382.88 = 31,480.32/x
  3. Step 3: Cross multiply
    55,351.68x = 76,382.88 × 31,480.32
  4. Step 4: Simplify right side
    55,351.68x = 2,404,557,504.92
  5. Step 5: Solve for x
    x = 2,404,557,504.92/55,351.68
  6. Step 6: Final answer
    x = 43,441.45

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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.