Home / 79,070.20-118,605.42-19,905.88

Finding the Fourth Proportional to 79,070.20, 118,605.42 and 19,905.88

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Solution

The fourth proportional to 79,070.20, 118,605.42 and 19,905.88 is: 29,858.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,070.20 : 118,605.42 = 19,905.88 : x
  2. Step 2: Convert to fraction form
    79,070.20/118,605.42 = 19,905.88/x
  3. Step 3: Cross multiply
    79,070.20x = 118,605.42 × 19,905.88
  4. Step 4: Simplify right side
    79,070.20x = 2,360,945,257.87
  5. Step 5: Solve for x
    x = 2,360,945,257.87/79,070.20
  6. Step 6: Final answer
    x = 29,858.85

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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.