Home / 92,986.08-128,311.20-55,253.04

Finding the Fourth Proportional to 92,986.08, 128,311.20 and 55,253.04

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Solution

The fourth proportional to 92,986.08, 128,311.20 and 55,253.04 is: 76,243.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,986.08 : 128,311.20 = 55,253.04 : x
  2. Step 2: Convert to fraction form
    92,986.08/128,311.20 = 55,253.04/x
  3. Step 3: Cross multiply
    92,986.08x = 128,311.20 × 55,253.04
  4. Step 4: Simplify right side
    92,986.08x = 7,089,583,866.05
  5. Step 5: Solve for x
    x = 7,089,583,866.05/92,986.08
  6. Step 6: Final answer
    x = 76,243.50

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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.