Home / 55,190.54-76,150.86-31,311.74

Finding the Fourth Proportional to 55,190.54, 76,150.86 and 31,311.74

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Solution

The fourth proportional to 55,190.54, 76,150.86 and 31,311.74 is: 43,203.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,190.54 : 76,150.86 = 31,311.74 : x
  2. Step 2: Convert to fraction form
    55,190.54/76,150.86 = 31,311.74/x
  3. Step 3: Cross multiply
    55,190.54x = 76,150.86 × 31,311.74
  4. Step 4: Simplify right side
    55,190.54x = 2,384,415,929.10
  5. Step 5: Solve for x
    x = 2,384,415,929.10/55,190.54
  6. Step 6: Final answer
    x = 43,203.34

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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.