Home / 76,511.58-114,771.21-54,261.42

Finding the Fourth Proportional to 76,511.58, 114,771.21 and 54,261.42

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Solution

The fourth proportional to 76,511.58, 114,771.21 and 54,261.42 is: 81,394.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,511.58 : 114,771.21 = 54,261.42 : x
  2. Step 2: Convert to fraction form
    76,511.58/114,771.21 = 54,261.42/x
  3. Step 3: Cross multiply
    76,511.58x = 114,771.21 × 54,261.42
  4. Step 4: Simplify right side
    76,511.58x = 6,227,648,829.72
  5. Step 5: Solve for x
    x = 6,227,648,829.72/76,511.58
  6. Step 6: Final answer
    x = 81,394.85

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1.5x scale

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.