Home / 57,160.40-85,740.60-36,165.20

Finding the Fourth Proportional to 57,160.40, 85,740.60 and 36,165.20

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Solution

The fourth proportional to 57,160.40, 85,740.60 and 36,165.20 is: 54,247.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,160.40 : 85,740.60 = 36,165.20 : x
  2. Step 2: Convert to fraction form
    57,160.40/85,740.60 = 36,165.20/x
  3. Step 3: Cross multiply
    57,160.40x = 85,740.60 × 36,165.20
  4. Step 4: Simplify right side
    57,160.40x = 3,100,825,947.12
  5. Step 5: Solve for x
    x = 3,100,825,947.12/57,160.40
  6. Step 6: Final answer
    x = 54,247.80

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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.