Home / 76,929.24-115,350.57-52,941.72

Finding the Fourth Proportional to 76,929.24, 115,350.57 and 52,941.72

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Solution

The fourth proportional to 76,929.24, 115,350.57 and 52,941.72 is: 79,382.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,929.24 : 115,350.57 = 52,941.72 : x
  2. Step 2: Convert to fraction form
    76,929.24/115,350.57 = 52,941.72/x
  3. Step 3: Cross multiply
    76,929.24x = 115,350.57 × 52,941.72
  4. Step 4: Simplify right side
    76,929.24x = 6,106,856,869.67
  5. Step 5: Solve for x
    x = 6,106,856,869.67/76,929.24
  6. Step 6: Final answer
    x = 79,382.78

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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.