Home / 78,983.64-118,522.32-29,098.80

Finding the Fourth Proportional to 78,983.64, 118,522.32 and 29,098.80

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Solution

The fourth proportional to 78,983.64, 118,522.32 and 29,098.80 is: 43,665.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,983.64 : 118,522.32 = 29,098.80 : x
  2. Step 2: Convert to fraction form
    78,983.64/118,522.32 = 29,098.80/x
  3. Step 3: Cross multiply
    78,983.64x = 118,522.32 × 29,098.80
  4. Step 4: Simplify right side
    78,983.64x = 3,448,857,285.22
  5. Step 5: Solve for x
    x = 3,448,857,285.22/78,983.64
  6. Step 6: Final answer
    x = 43,665.46

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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.