Home / 78,930.18-118,391.40-29,006.44

Finding the Fourth Proportional to 78,930.18, 118,391.40 and 29,006.44

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Solution

The fourth proportional to 78,930.18, 118,391.40 and 29,006.44 is: 43,508.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,930.18 : 118,391.40 = 29,006.44 : x
  2. Step 2: Convert to fraction form
    78,930.18/118,391.40 = 29,006.44/x
  3. Step 3: Cross multiply
    78,930.18x = 118,391.40 × 29,006.44
  4. Step 4: Simplify right side
    78,930.18x = 3,434,113,040.62
  5. Step 5: Solve for x
    x = 3,434,113,040.62/78,930.18
  6. Step 6: Final answer
    x = 43,508.24

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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.