Home / 77,916.33-116,845.34-61,470.09

Finding the Fourth Proportional to 77,916.33, 116,845.34 and 61,470.09

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Solution

The fourth proportional to 77,916.33, 116,845.34 and 61,470.09 is: 92,182.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,916.33 : 116,845.34 = 61,470.09 : x
  2. Step 2: Convert to fraction form
    77,916.33/116,845.34 = 61,470.09/x
  3. Step 3: Cross multiply
    77,916.33x = 116,845.34 × 61,470.09
  4. Step 4: Simplify right side
    77,916.33x = 7,182,493,258.53
  5. Step 5: Solve for x
    x = 7,182,493,258.53/77,916.33
  6. Step 6: Final answer
    x = 92,182.13

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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.