Home / 77,025.20-115,514.76-40,069.04

Finding the Fourth Proportional to 77,025.20, 115,514.76 and 40,069.04

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Solution

The fourth proportional to 77,025.20, 115,514.76 and 40,069.04 is: 60,091.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,025.20 : 115,514.76 = 40,069.04 : x
  2. Step 2: Convert to fraction form
    77,025.20/115,514.76 = 40,069.04/x
  3. Step 3: Cross multiply
    77,025.20x = 115,514.76 × 40,069.04
  4. Step 4: Simplify right side
    77,025.20x = 4,628,565,539.03
  5. Step 5: Solve for x
    x = 4,628,565,539.03/77,025.20
  6. Step 6: Final answer
    x = 60,091.57

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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.