Home / 78,760.26-118,134.42-19,595.88

Finding the Fourth Proportional to 78,760.26, 118,134.42 and 19,595.88

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Solution

The fourth proportional to 78,760.26, 118,134.42 and 19,595.88 is: 29,392.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,760.26 : 118,134.42 = 19,595.88 : x
  2. Step 2: Convert to fraction form
    78,760.26/118,134.42 = 19,595.88/x
  3. Step 3: Cross multiply
    78,760.26x = 118,134.42 × 19,595.88
  4. Step 4: Simplify right side
    78,760.26x = 2,314,947,918.19
  5. Step 5: Solve for x
    x = 2,314,947,918.19/78,760.26
  6. Step 6: Final answer
    x = 29,392.33

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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.