Home / 79,108.26-118,680.17-26,516.40

Finding the Fourth Proportional to 79,108.26, 118,680.17 and 26,516.40

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Solution

The fourth proportional to 79,108.26, 118,680.17 and 26,516.40 is: 39,780.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,108.26 : 118,680.17 = 26,516.40 : x
  2. Step 2: Convert to fraction form
    79,108.26/118,680.17 = 26,516.40/x
  3. Step 3: Cross multiply
    79,108.26x = 118,680.17 × 26,516.40
  4. Step 4: Simplify right side
    79,108.26x = 3,146,970,727.21
  5. Step 5: Solve for x
    x = 3,146,970,727.21/79,108.26
  6. Step 6: Final answer
    x = 39,780.56

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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.