Home / 55,126.83-76,072.73-31,255.12

Finding the Fourth Proportional to 55,126.83, 76,072.73 and 31,255.12

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Solution

The fourth proportional to 55,126.83, 76,072.73 and 31,255.12 is: 43,130.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,126.83 : 76,072.73 = 31,255.12 : x
  2. Step 2: Convert to fraction form
    55,126.83/76,072.73 = 31,255.12/x
  3. Step 3: Cross multiply
    55,126.83x = 76,072.73 × 31,255.12
  4. Step 4: Simplify right side
    55,126.83x = 2,377,662,304.88
  5. Step 5: Solve for x
    x = 2,377,662,304.88/55,126.83
  6. Step 6: Final answer
    x = 43,130.76

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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.