Home / 81,452.14-122,103.02-56,503.96

Finding the Fourth Proportional to 81,452.14, 122,103.02 and 56,503.96

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Solution

The fourth proportional to 81,452.14, 122,103.02 and 56,503.96 is: 84,703.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,452.14 : 122,103.02 = 56,503.96 : x
  2. Step 2: Convert to fraction form
    81,452.14/122,103.02 = 56,503.96/x
  3. Step 3: Cross multiply
    81,452.14x = 122,103.02 × 56,503.96
  4. Step 4: Simplify right side
    81,452.14x = 6,899,304,157.96
  5. Step 5: Solve for x
    x = 6,899,304,157.96/81,452.14
  6. Step 6: Final answer
    x = 84,703.78

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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.