Home / 77,782.70-116,544.45-73,117.10

Finding the Fourth Proportional to 77,782.70, 116,544.45 and 73,117.10

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Solution

The fourth proportional to 77,782.70, 116,544.45 and 73,117.10 is: 109,553.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,782.70 : 116,544.45 = 73,117.10 : x
  2. Step 2: Convert to fraction form
    77,782.70/116,544.45 = 73,117.10/x
  3. Step 3: Cross multiply
    77,782.70x = 116,544.45 × 73,117.10
  4. Step 4: Simplify right side
    77,782.70x = 8,521,392,205.10
  5. Step 5: Solve for x
    x = 8,521,392,205.10/77,782.70
  6. Step 6: Final answer
    x = 109,553.82

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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.