Home / 79,042.12-118,609.98-29,157.28

Finding the Fourth Proportional to 79,042.12, 118,609.98 and 29,157.28

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Solution

The fourth proportional to 79,042.12, 118,609.98 and 29,157.28 is: 43,753.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,042.12 : 118,609.98 = 29,157.28 : x
  2. Step 2: Convert to fraction form
    79,042.12/118,609.98 = 29,157.28/x
  3. Step 3: Cross multiply
    79,042.12x = 118,609.98 × 29,157.28
  4. Step 4: Simplify right side
    79,042.12x = 3,458,344,397.65
  5. Step 5: Solve for x
    x = 3,458,344,397.65/79,042.12
  6. Step 6: Final answer
    x = 43,753.18

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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.