Home / 55,231.01-76,216.07-31,354.55

Finding the Fourth Proportional to 55,231.01, 76,216.07 and 31,354.55

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Solution

The fourth proportional to 55,231.01, 76,216.07 and 31,354.55 is: 43,267.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,231.01 : 76,216.07 = 31,354.55 : x
  2. Step 2: Convert to fraction form
    55,231.01/76,216.07 = 31,354.55/x
  3. Step 3: Cross multiply
    55,231.01x = 76,216.07 × 31,354.55
  4. Step 4: Simplify right side
    55,231.01x = 2,389,720,274.92
  5. Step 5: Solve for x
    x = 2,389,720,274.92/55,231.01
  6. Step 6: Final answer
    x = 43,267.73

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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.