Home / 55,383.32-76,418.76-31,508.60

Finding the Fourth Proportional to 55,383.32, 76,418.76 and 31,508.60

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Solution

The fourth proportional to 55,383.32, 76,418.76 and 31,508.60 is: 43,476.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,383.32 : 76,418.76 = 31,508.60 : x
  2. Step 2: Convert to fraction form
    55,383.32/76,418.76 = 31,508.60/x
  3. Step 3: Cross multiply
    55,383.32x = 76,418.76 × 31,508.60
  4. Step 4: Simplify right side
    55,383.32x = 2,407,848,141.34
  5. Step 5: Solve for x
    x = 2,407,848,141.34/55,383.32
  6. Step 6: Final answer
    x = 43,476.05

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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.