Home / 55,395.36-76,442.94-31,519.80

Finding the Fourth Proportional to 55,395.36, 76,442.94 and 31,519.80

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Solution

The fourth proportional to 55,395.36, 76,442.94 and 31,519.80 is: 43,495.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,395.36 : 76,442.94 = 31,519.80 : x
  2. Step 2: Convert to fraction form
    55,395.36/76,442.94 = 31,519.80/x
  3. Step 3: Cross multiply
    55,395.36x = 76,442.94 × 31,519.80
  4. Step 4: Simplify right side
    55,395.36x = 2,409,466,180.21
  5. Step 5: Solve for x
    x = 2,409,466,180.21/55,395.36
  6. Step 6: Final answer
    x = 43,495.81

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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.