Home / 55,212.36-76,188.60-31,334.64

Finding the Fourth Proportional to 55,212.36, 76,188.60 and 31,334.64

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Solution

The fourth proportional to 55,212.36, 76,188.60 and 31,334.64 is: 43,239.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,212.36 : 76,188.60 = 31,334.64 : x
  2. Step 2: Convert to fraction form
    55,212.36/76,188.60 = 31,334.64/x
  3. Step 3: Cross multiply
    55,212.36x = 76,188.60 × 31,334.64
  4. Step 4: Simplify right side
    55,212.36x = 2,387,342,353.10
  5. Step 5: Solve for x
    x = 2,387,342,353.10/55,212.36
  6. Step 6: Final answer
    x = 43,239.27

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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.