Home / 57,447.20-86,219.40-25,905.80

Finding the Fourth Proportional to 57,447.20, 86,219.40 and 25,905.80

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Solution

The fourth proportional to 57,447.20, 86,219.40 and 25,905.80 is: 38,880.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,447.20 : 86,219.40 = 25,905.80 : x
  2. Step 2: Convert to fraction form
    57,447.20/86,219.40 = 25,905.80/x
  3. Step 3: Cross multiply
    57,447.20x = 86,219.40 × 25,905.80
  4. Step 4: Simplify right side
    57,447.20x = 2,233,582,532.52
  5. Step 5: Solve for x
    x = 2,233,582,532.52/57,447.20
  6. Step 6: Final answer
    x = 38,880.62

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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.