Home / 55,239.08-76,207.20-38,481.80

Finding the Fourth Proportional to 55,239.08, 76,207.20 and 38,481.80

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Solution

The fourth proportional to 55,239.08, 76,207.20 and 38,481.80 is: 53,089.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,239.08 : 76,207.20 = 38,481.80 : x
  2. Step 2: Convert to fraction form
    55,239.08/76,207.20 = 38,481.80/x
  3. Step 3: Cross multiply
    55,239.08x = 76,207.20 × 38,481.80
  4. Step 4: Simplify right side
    55,239.08x = 2,932,590,228.96
  5. Step 5: Solve for x
    x = 2,932,590,228.96/55,239.08
  6. Step 6: Final answer
    x = 53,089.05

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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.