Home / 78,556.27-117,852.87-25,965.76

Finding the Fourth Proportional to 78,556.27, 117,852.87 and 25,965.76

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Solution

The fourth proportional to 78,556.27, 117,852.87 and 25,965.76 is: 38,954.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,556.27 : 117,852.87 = 25,965.76 : x
  2. Step 2: Convert to fraction form
    78,556.27/117,852.87 = 25,965.76/x
  3. Step 3: Cross multiply
    78,556.27x = 117,852.87 × 25,965.76
  4. Step 4: Simplify right side
    78,556.27x = 3,060,139,337.73
  5. Step 5: Solve for x
    x = 3,060,139,337.73/78,556.27
  6. Step 6: Final answer
    x = 38,954.74

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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.