Home / 78,063.84-117,108-25,461.18

Finding the Fourth Proportional to 78,063.84, 117,108 and 25,461.18

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Solution

The fourth proportional to 78,063.84, 117,108 and 25,461.18 is: 38,195.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,063.84 : 117,108 = 25,461.18 : x
  2. Step 2: Convert to fraction form
    78,063.84/117,108 = 25,461.18/x
  3. Step 3: Cross multiply
    78,063.84x = 117,108 × 25,461.18
  4. Step 4: Simplify right side
    78,063.84x = 2,981,707,867.44
  5. Step 5: Solve for x
    x = 2,981,707,867.44/78,063.84
  6. Step 6: Final answer
    x = 38,195.76

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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.