Home / 55,613.54-76,739.31-31,738.79

Finding the Fourth Proportional to 55,613.54, 76,739.31 and 31,738.79

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Solution

The fourth proportional to 55,613.54, 76,739.31 and 31,738.79 is: 43,795.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,613.54 : 76,739.31 = 31,738.79 : x
  2. Step 2: Convert to fraction form
    55,613.54/76,739.31 = 31,738.79/x
  3. Step 3: Cross multiply
    55,613.54x = 76,739.31 × 31,738.79
  4. Step 4: Simplify right side
    55,613.54x = 2,435,612,461.14
  5. Step 5: Solve for x
    x = 2,435,612,461.14/55,613.54
  6. Step 6: Final answer
    x = 43,795.32

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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.