Home / 78,077.14-117,098.18-35,916.73

Finding the Fourth Proportional to 78,077.14, 117,098.18 and 35,916.73

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Solution

The fourth proportional to 78,077.14, 117,098.18 and 35,916.73 is: 53,867.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,077.14 : 117,098.18 = 35,916.73 : x
  2. Step 2: Convert to fraction form
    78,077.14/117,098.18 = 35,916.73/x
  3. Step 3: Cross multiply
    78,077.14x = 117,098.18 × 35,916.73
  4. Step 4: Simplify right side
    78,077.14x = 4,205,783,376.91
  5. Step 5: Solve for x
    x = 4,205,783,376.91/78,077.14
  6. Step 6: Final answer
    x = 53,867.03

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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.