Home / 55,215.36-76,199.04-30,067.20

Finding the Fourth Proportional to 55,215.36, 76,199.04 and 30,067.20

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Solution

The fourth proportional to 55,215.36, 76,199.04 and 30,067.20 is: 41,493.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,215.36 : 76,199.04 = 30,067.20 : x
  2. Step 2: Convert to fraction form
    55,215.36/76,199.04 = 30,067.20/x
  3. Step 3: Cross multiply
    55,215.36x = 76,199.04 × 30,067.20
  4. Step 4: Simplify right side
    55,215.36x = 2,291,091,775.49
  5. Step 5: Solve for x
    x = 2,291,091,775.49/55,215.36
  6. Step 6: Final answer
    x = 41,493.74

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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.