Home / 55,322.21-76,344.30-31,448.88

Finding the Fourth Proportional to 55,322.21, 76,344.30 and 31,448.88

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Solution

The fourth proportional to 55,322.21, 76,344.30 and 31,448.88 is: 43,399.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,322.21 : 76,344.30 = 31,448.88 : x
  2. Step 2: Convert to fraction form
    55,322.21/76,344.30 = 31,448.88/x
  3. Step 3: Cross multiply
    55,322.21x = 76,344.30 × 31,448.88
  4. Step 4: Simplify right side
    55,322.21x = 2,400,942,855.65
  5. Step 5: Solve for x
    x = 2,400,942,855.65/55,322.21
  6. Step 6: Final answer
    x = 43,399.26

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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.