Home / 55,187.18-82,793.11-20,126.84

Finding the Fourth Proportional to 55,187.18, 82,793.11 and 20,126.84

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Solution

The fourth proportional to 55,187.18, 82,793.11 and 20,126.84 is: 30,194.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,187.18 : 82,793.11 = 20,126.84 : x
  2. Step 2: Convert to fraction form
    55,187.18/82,793.11 = 20,126.84/x
  3. Step 3: Cross multiply
    55,187.18x = 82,793.11 × 20,126.84
  4. Step 4: Simplify right side
    55,187.18x = 1,666,363,264.11
  5. Step 5: Solve for x
    x = 1,666,363,264.11/55,187.18
  6. Step 6: Final answer
    x = 30,194.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.