Home / 55,613.88-76,749.12-30,463.38

Finding the Fourth Proportional to 55,613.88, 76,749.12 and 30,463.38

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Solution

The fourth proportional to 55,613.88, 76,749.12 and 30,463.38 is: 42,040.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,613.88 : 76,749.12 = 30,463.38 : x
  2. Step 2: Convert to fraction form
    55,613.88/76,749.12 = 30,463.38/x
  3. Step 3: Cross multiply
    55,613.88x = 76,749.12 × 30,463.38
  4. Step 4: Simplify right side
    55,613.88x = 2,338,037,607.23
  5. Step 5: Solve for x
    x = 2,338,037,607.23/55,613.88
  6. Step 6: Final answer
    x = 42,040.54

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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.