Home / 78,940.68-118,407.32-29,017.14

Finding the Fourth Proportional to 78,940.68, 118,407.32 and 29,017.14

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Solution

The fourth proportional to 78,940.68, 118,407.32 and 29,017.14 is: 43,524.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,940.68 : 118,407.32 = 29,017.14 : x
  2. Step 2: Convert to fraction form
    78,940.68/118,407.32 = 29,017.14/x
  3. Step 3: Cross multiply
    78,940.68x = 118,407.32 × 29,017.14
  4. Step 4: Simplify right side
    78,940.68x = 3,435,841,301.17
  5. Step 5: Solve for x
    x = 3,435,841,301.17/78,940.68
  6. Step 6: Final answer
    x = 43,524.35

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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.