Home / 78,348.52-117,537.36-25,760.08

Finding the Fourth Proportional to 78,348.52, 117,537.36 and 25,760.08

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Solution

The fourth proportional to 78,348.52, 117,537.36 and 25,760.08 is: 38,644.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,348.52 : 117,537.36 = 25,760.08 : x
  2. Step 2: Convert to fraction form
    78,348.52/117,537.36 = 25,760.08/x
  3. Step 3: Cross multiply
    78,348.52x = 117,537.36 × 25,760.08
  4. Step 4: Simplify right side
    78,348.52x = 3,027,771,796.59
  5. Step 5: Solve for x
    x = 3,027,771,796.59/78,348.52
  6. Step 6: Final answer
    x = 38,644.91

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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.