Home / 80,828.20-121,242.30-52,834.60

Finding the Fourth Proportional to 80,828.20, 121,242.30 and 52,834.60

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Solution

The fourth proportional to 80,828.20, 121,242.30 and 52,834.60 is: 79,251.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,828.20 : 121,242.30 = 52,834.60 : x
  2. Step 2: Convert to fraction form
    80,828.20/121,242.30 = 52,834.60/x
  3. Step 3: Cross multiply
    80,828.20x = 121,242.30 × 52,834.60
  4. Step 4: Simplify right side
    80,828.20x = 6,405,788,423.58
  5. Step 5: Solve for x
    x = 6,405,788,423.58/80,828.20
  6. Step 6: Final answer
    x = 79,251.90

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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.