Home / 55,634.48-76,730.90-48,905.80

Finding the Fourth Proportional to 55,634.48, 76,730.90 and 48,905.80

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Solution

The fourth proportional to 55,634.48, 76,730.90 and 48,905.80 is: 67,450.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,634.48 : 76,730.90 = 48,905.80 : x
  2. Step 2: Convert to fraction form
    55,634.48/76,730.90 = 48,905.80/x
  3. Step 3: Cross multiply
    55,634.48x = 76,730.90 × 48,905.80
  4. Step 4: Simplify right side
    55,634.48x = 3,752,586,049.22
  5. Step 5: Solve for x
    x = 3,752,586,049.22/55,634.48
  6. Step 6: Final answer
    x = 67,450.73

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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.