Home / 55,140.35-76,092.75-30,610.31

Finding the Fourth Proportional to 55,140.35, 76,092.75 and 30,610.31

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Solution

The fourth proportional to 55,140.35, 76,092.75 and 30,610.31 is: 42,241.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,140.35 : 76,092.75 = 30,610.31 : x
  2. Step 2: Convert to fraction form
    55,140.35/76,092.75 = 30,610.31/x
  3. Step 3: Cross multiply
    55,140.35x = 76,092.75 × 30,610.31
  4. Step 4: Simplify right side
    55,140.35x = 2,329,222,285.79
  5. Step 5: Solve for x
    x = 2,329,222,285.79/55,140.35
  6. Step 6: Final answer
    x = 42,241.71

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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.