Home / 76,916.68-115,295.82-55,804.12

Finding the Fourth Proportional to 76,916.68, 115,295.82 and 55,804.12

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Solution

The fourth proportional to 76,916.68, 115,295.82 and 55,804.12 is: 83,648.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,916.68 : 115,295.82 = 55,804.12 : x
  2. Step 2: Convert to fraction form
    76,916.68/115,295.82 = 55,804.12/x
  3. Step 3: Cross multiply
    76,916.68x = 115,295.82 × 55,804.12
  4. Step 4: Simplify right side
    76,916.68x = 6,433,981,774.78
  5. Step 5: Solve for x
    x = 6,433,981,774.78/76,916.68
  6. Step 6: Final answer
    x = 83,648.72

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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.