Home / 78,825.33-108,781.26-43,017.64

Finding the Fourth Proportional to 78,825.33, 108,781.26 and 43,017.64

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Solution

The fourth proportional to 78,825.33, 108,781.26 and 43,017.64 is: 59,365.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,825.33 : 108,781.26 = 43,017.64 : x
  2. Step 2: Convert to fraction form
    78,825.33/108,781.26 = 43,017.64/x
  3. Step 3: Cross multiply
    78,825.33x = 108,781.26 × 43,017.64
  4. Step 4: Simplify right side
    78,825.33x = 4,679,513,081.43
  5. Step 5: Solve for x
    x = 4,679,513,081.43/78,825.33
  6. Step 6: Final answer
    x = 59,365.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.