Home / 78,983.20-118,521.60-29,098.36

Finding the Fourth Proportional to 78,983.20, 118,521.60 and 29,098.36

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Solution

The fourth proportional to 78,983.20, 118,521.60 and 29,098.36 is: 43,664.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,983.20 : 118,521.60 = 29,098.36 : x
  2. Step 2: Convert to fraction form
    78,983.20/118,521.60 = 29,098.36/x
  3. Step 3: Cross multiply
    78,983.20x = 118,521.60 × 29,098.36
  4. Step 4: Simplify right side
    78,983.20x = 3,448,784,184.58
  5. Step 5: Solve for x
    x = 3,448,784,184.58/78,983.20
  6. Step 6: Final answer
    x = 43,664.78

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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.