Home / 77,348.20-116,022.30-72,682.60

Finding the Fourth Proportional to 77,348.20, 116,022.30 and 72,682.60

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Solution

The fourth proportional to 77,348.20, 116,022.30 and 72,682.60 is: 109,023.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,348.20 : 116,022.30 = 72,682.60 : x
  2. Step 2: Convert to fraction form
    77,348.20/116,022.30 = 72,682.60/x
  3. Step 3: Cross multiply
    77,348.20x = 116,022.30 × 72,682.60
  4. Step 4: Simplify right side
    77,348.20x = 8,432,802,421.98
  5. Step 5: Solve for x
    x = 8,432,802,421.98/77,348.20
  6. Step 6: Final answer
    x = 109,023.90

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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.