Home / 78,982.16-118,520.10-29,097.27

Finding the Fourth Proportional to 78,982.16, 118,520.10 and 29,097.27

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Solution

The fourth proportional to 78,982.16, 118,520.10 and 29,097.27 is: 43,663.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,982.16 : 118,520.10 = 29,097.27 : x
  2. Step 2: Convert to fraction form
    78,982.16/118,520.10 = 29,097.27/x
  3. Step 3: Cross multiply
    78,982.16x = 118,520.10 × 29,097.27
  4. Step 4: Simplify right side
    78,982.16x = 3,448,611,350.13
  5. Step 5: Solve for x
    x = 3,448,611,350.13/78,982.16
  6. Step 6: Final answer
    x = 43,663.17

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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.