Home / 57,824.40-86,736.60-54,325.20

Finding the Fourth Proportional to 57,824.40, 86,736.60 and 54,325.20

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Solution

The fourth proportional to 57,824.40, 86,736.60 and 54,325.20 is: 81,487.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,824.40 : 86,736.60 = 54,325.20 : x
  2. Step 2: Convert to fraction form
    57,824.40/86,736.60 = 54,325.20/x
  3. Step 3: Cross multiply
    57,824.40x = 86,736.60 × 54,325.20
  4. Step 4: Simplify right side
    57,824.40x = 4,711,983,142.32
  5. Step 5: Solve for x
    x = 4,711,983,142.32/57,824.40
  6. Step 6: Final answer
    x = 81,487.80

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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.