Home / 77,339.20-115,941.30-29,986.60

Finding the Fourth Proportional to 77,339.20, 115,941.30 and 29,986.60

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Solution

The fourth proportional to 77,339.20, 115,941.30 and 29,986.60 is: 44,953.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,339.20 : 115,941.30 = 29,986.60 : x
  2. Step 2: Convert to fraction form
    77,339.20/115,941.30 = 29,986.60/x
  3. Step 3: Cross multiply
    77,339.20x = 115,941.30 × 29,986.60
  4. Step 4: Simplify right side
    77,339.20x = 3,476,685,386.58
  5. Step 5: Solve for x
    x = 3,476,685,386.58/77,339.20
  6. Step 6: Final answer
    x = 44,953.73

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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.