Home / 78,771.64-118,091.04-34,365.82

Finding the Fourth Proportional to 78,771.64, 118,091.04 and 34,365.82

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Solution

The fourth proportional to 78,771.64, 118,091.04 and 34,365.82 is: 51,519.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,771.64 : 118,091.04 = 34,365.82 : x
  2. Step 2: Convert to fraction form
    78,771.64/118,091.04 = 34,365.82/x
  3. Step 3: Cross multiply
    78,771.64x = 118,091.04 × 34,365.82
  4. Step 4: Simplify right side
    78,771.64x = 4,058,295,424.25
  5. Step 5: Solve for x
    x = 4,058,295,424.25/78,771.64
  6. Step 6: Final answer
    x = 51,519.75

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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.