Home / 79,815.74-119,801.51-65,917.35

Finding the Fourth Proportional to 79,815.74, 119,801.51 and 65,917.35

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Solution

The fourth proportional to 79,815.74, 119,801.51 and 65,917.35 is: 98,940.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,815.74 : 119,801.51 = 65,917.35 : x
  2. Step 2: Convert to fraction form
    79,815.74/119,801.51 = 65,917.35/x
  3. Step 3: Cross multiply
    79,815.74x = 119,801.51 × 65,917.35
  4. Step 4: Simplify right side
    79,815.74x = 7,896,998,229.99
  5. Step 5: Solve for x
    x = 7,896,998,229.99/79,815.74
  6. Step 6: Final answer
    x = 98,940.37

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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.