Home / 78,174.13-117,283.08-25,620.52

Finding the Fourth Proportional to 78,174.13, 117,283.08 and 25,620.52

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Solution

The fourth proportional to 78,174.13, 117,283.08 and 25,620.52 is: 38,437.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,174.13 : 117,283.08 = 25,620.52 : x
  2. Step 2: Convert to fraction form
    78,174.13/117,283.08 = 25,620.52/x
  3. Step 3: Cross multiply
    78,174.13x = 117,283.08 × 25,620.52
  4. Step 4: Simplify right side
    78,174.13x = 3,004,853,496.80
  5. Step 5: Solve for x
    x = 3,004,853,496.80/78,174.13
  6. Step 6: Final answer
    x = 38,437.95

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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.