Home / 78,916.48-118,375.17-26,325.81

Finding the Fourth Proportional to 78,916.48, 118,375.17 and 26,325.81

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Solution

The fourth proportional to 78,916.48, 118,375.17 and 26,325.81 is: 39,488.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,916.48 : 118,375.17 = 26,325.81 : x
  2. Step 2: Convert to fraction form
    78,916.48/118,375.17 = 26,325.81/x
  3. Step 3: Cross multiply
    78,916.48x = 118,375.17 × 26,325.81
  4. Step 4: Simplify right side
    78,916.48x = 3,116,322,234.14
  5. Step 5: Solve for x
    x = 3,116,322,234.14/78,916.48
  6. Step 6: Final answer
    x = 39,488.87

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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.