Home / 80,874.46-121,324.89-25,457.50

Finding the Fourth Proportional to 80,874.46, 121,324.89 and 25,457.50

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Solution

The fourth proportional to 80,874.46, 121,324.89 and 25,457.50 is: 38,190.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,874.46 : 121,324.89 = 25,457.50 : x
  2. Step 2: Convert to fraction form
    80,874.46/121,324.89 = 25,457.50/x
  3. Step 3: Cross multiply
    80,874.46x = 121,324.89 × 25,457.50
  4. Step 4: Simplify right side
    80,874.46x = 3,088,628,387.18
  5. Step 5: Solve for x
    x = 3,088,628,387.18/80,874.46
  6. Step 6: Final answer
    x = 38,190.41

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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.