Home / 76,901.60-115,311.27-39,446.36

Finding the Fourth Proportional to 76,901.60, 115,311.27 and 39,446.36

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Solution

The fourth proportional to 76,901.60, 115,311.27 and 39,446.36 is: 59,148.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,901.60 : 115,311.27 = 39,446.36 : x
  2. Step 2: Convert to fraction form
    76,901.60/115,311.27 = 39,446.36/x
  3. Step 3: Cross multiply
    76,901.60x = 115,311.27 × 39,446.36
  4. Step 4: Simplify right side
    76,901.60x = 4,548,609,868.48
  5. Step 5: Solve for x
    x = 4,548,609,868.48/76,901.60
  6. Step 6: Final answer
    x = 59,148.44

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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.