Home / 55,188.96-82,783.32-20,114.28

Finding the Fourth Proportional to 55,188.96, 82,783.32 and 20,114.28

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Solution

The fourth proportional to 55,188.96, 82,783.32 and 20,114.28 is: 30,171.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,188.96 : 82,783.32 = 20,114.28 : x
  2. Step 2: Convert to fraction form
    55,188.96/82,783.32 = 20,114.28/x
  3. Step 3: Cross multiply
    55,188.96x = 82,783.32 × 20,114.28
  4. Step 4: Simplify right side
    55,188.96x = 1,665,126,877.81
  5. Step 5: Solve for x
    x = 1,665,126,877.81/55,188.96
  6. Step 6: Final answer
    x = 30,171.38

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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.