Home / 78,808.83-118,171.45-34,383.69

Finding the Fourth Proportional to 78,808.83, 118,171.45 and 34,383.69

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Solution

The fourth proportional to 78,808.83, 118,171.45 and 34,383.69 is: 51,557.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,808.83 : 118,171.45 = 34,383.69 : x
  2. Step 2: Convert to fraction form
    78,808.83/118,171.45 = 34,383.69/x
  3. Step 3: Cross multiply
    78,808.83x = 118,171.45 × 34,383.69
  4. Step 4: Simplify right side
    78,808.83x = 4,063,170,503.65
  5. Step 5: Solve for x
    x = 4,063,170,503.65/78,808.83
  6. Step 6: Final answer
    x = 51,557.30

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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.