Home / 51,216.40-76,882.20-39,581.20

Finding the Fourth Proportional to 51,216.40, 76,882.20 and 39,581.20

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Solution

The fourth proportional to 51,216.40, 76,882.20 and 39,581.20 is: 59,416.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,216.40 : 76,882.20 = 39,581.20 : x
  2. Step 2: Convert to fraction form
    51,216.40/76,882.20 = 39,581.20/x
  3. Step 3: Cross multiply
    51,216.40x = 76,882.20 × 39,581.20
  4. Step 4: Simplify right side
    51,216.40x = 3,043,089,734.64
  5. Step 5: Solve for x
    x = 3,043,089,734.64/51,216.40
  6. Step 6: Final answer
    x = 59,416.31

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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.