Home / 77,789.20-116,392.20-51,545.20

Finding the Fourth Proportional to 77,789.20, 116,392.20 and 51,545.20

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Solution

The fourth proportional to 77,789.20, 116,392.20 and 51,545.20 is: 77,124.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,789.20 : 116,392.20 = 51,545.20 : x
  2. Step 2: Convert to fraction form
    77,789.20/116,392.20 = 51,545.20/x
  3. Step 3: Cross multiply
    77,789.20x = 116,392.20 × 51,545.20
  4. Step 4: Simplify right side
    77,789.20x = 5,999,459,227.44
  5. Step 5: Solve for x
    x = 5,999,459,227.44/77,789.20
  6. Step 6: Final answer
    x = 77,124.58

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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.