Home / 79,121.13-118,710.85-41,679.69

Finding the Fourth Proportional to 79,121.13, 118,710.85 and 41,679.69

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Solution

The fourth proportional to 79,121.13, 118,710.85 and 41,679.69 is: 62,534.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,121.13 : 118,710.85 = 41,679.69 : x
  2. Step 2: Convert to fraction form
    79,121.13/118,710.85 = 41,679.69/x
  3. Step 3: Cross multiply
    79,121.13x = 118,710.85 × 41,679.69
  4. Step 4: Simplify right side
    79,121.13x = 4,947,831,427.64
  5. Step 5: Solve for x
    x = 4,947,831,427.64/79,121.13
  6. Step 6: Final answer
    x = 62,534.89

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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.