Home / 55,143.72-76,111.85-31,284.36

Finding the Fourth Proportional to 55,143.72, 76,111.85 and 31,284.36

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Solution

The fourth proportional to 55,143.72, 76,111.85 and 31,284.36 is: 43,180.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,143.72 : 76,111.85 = 31,284.36 : x
  2. Step 2: Convert to fraction form
    55,143.72/76,111.85 = 31,284.36/x
  3. Step 3: Cross multiply
    55,143.72x = 76,111.85 × 31,284.36
  4. Step 4: Simplify right side
    55,143.72x = 2,381,110,593.88
  5. Step 5: Solve for x
    x = 2,381,110,593.88/55,143.72
  6. Step 6: Final answer
    x = 43,180.09

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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.