Home / 78,825.96-118,348.26-49,359.72

Finding the Fourth Proportional to 78,825.96, 118,348.26 and 49,359.72

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Solution

The fourth proportional to 78,825.96, 118,348.26 and 49,359.72 is: 74,108.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,825.96 : 118,348.26 = 49,359.72 : x
  2. Step 2: Convert to fraction form
    78,825.96/118,348.26 = 49,359.72/x
  3. Step 3: Cross multiply
    78,825.96x = 118,348.26 × 49,359.72
  4. Step 4: Simplify right side
    78,825.96x = 5,841,636,976.09
  5. Step 5: Solve for x
    x = 5,841,636,976.09/78,825.96
  6. Step 6: Final answer
    x = 74,108.03

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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.