Home / 55,239.22-76,230.21-31,365.88

Finding the Fourth Proportional to 55,239.22, 76,230.21 and 31,365.88

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Solution

The fourth proportional to 55,239.22, 76,230.21 and 31,365.88 is: 43,284.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,239.22 : 76,230.21 = 31,365.88 : x
  2. Step 2: Convert to fraction form
    55,239.22/76,230.21 = 31,365.88/x
  3. Step 3: Cross multiply
    55,239.22x = 76,230.21 × 31,365.88
  4. Step 4: Simplify right side
    55,239.22x = 2,391,027,975.08
  5. Step 5: Solve for x
    x = 2,391,027,975.08/55,239.22
  6. Step 6: Final answer
    x = 43,284.97

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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.