Home / 76,511.18-114,766.62-20,351.35

Finding the Fourth Proportional to 76,511.18, 114,766.62 and 20,351.35

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Solution

The fourth proportional to 76,511.18, 114,766.62 and 20,351.35 is: 30,526.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,511.18 : 114,766.62 = 20,351.35 : x
  2. Step 2: Convert to fraction form
    76,511.18/114,766.62 = 20,351.35/x
  3. Step 3: Cross multiply
    76,511.18x = 114,766.62 × 20,351.35
  4. Step 4: Simplify right side
    76,511.18x = 2,335,655,073.52
  5. Step 5: Solve for x
    x = 2,335,655,073.52/76,511.18
  6. Step 6: Final answer
    x = 30,526.98

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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.