Home / 79,210.76-118,742.31-39,721.73

Finding the Fourth Proportional to 79,210.76, 118,742.31 and 39,721.73

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Solution

The fourth proportional to 79,210.76, 118,742.31 and 39,721.73 is: 59,545.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,210.76 : 118,742.31 = 39,721.73 : x
  2. Step 2: Convert to fraction form
    79,210.76/118,742.31 = 39,721.73/x
  3. Step 3: Cross multiply
    79,210.76x = 118,742.31 × 39,721.73
  4. Step 4: Simplify right side
    79,210.76x = 4,716,649,383.68
  5. Step 5: Solve for x
    x = 4,716,649,383.68/79,210.76
  6. Step 6: Final answer
    x = 59,545.57

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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.