Home / 55,613.94-76,747.21-30,120.30

Finding the Fourth Proportional to 55,613.94, 76,747.21 and 30,120.30

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Solution

The fourth proportional to 55,613.94, 76,747.21 and 30,120.30 is: 41,566.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,613.94 : 76,747.21 = 30,120.30 : x
  2. Step 2: Convert to fraction form
    55,613.94/76,747.21 = 30,120.30/x
  3. Step 3: Cross multiply
    55,613.94x = 76,747.21 × 30,120.30
  4. Step 4: Simplify right side
    55,613.94x = 2,311,649,199.25
  5. Step 5: Solve for x
    x = 2,311,649,199.25/55,613.94
  6. Step 6: Final answer
    x = 41,566.00

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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.