Home / 79,717.19-119,582.66-20,552.36

Finding the Fourth Proportional to 79,717.19, 119,582.66 and 20,552.36

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Solution

The fourth proportional to 79,717.19, 119,582.66 and 20,552.36 is: 30,830.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,717.19 : 119,582.66 = 20,552.36 : x
  2. Step 2: Convert to fraction form
    79,717.19/119,582.66 = 20,552.36/x
  3. Step 3: Cross multiply
    79,717.19x = 119,582.66 × 20,552.36
  4. Step 4: Simplify right side
    79,717.19x = 2,457,705,177.40
  5. Step 5: Solve for x
    x = 2,457,705,177.40/79,717.19
  6. Step 6: Final answer
    x = 30,830.31

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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.