Home / 78,704.83-108,609.45-42,894.04

Finding the Fourth Proportional to 78,704.83, 108,609.45 and 42,894.04

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Solution

The fourth proportional to 78,704.83, 108,609.45 and 42,894.04 is: 59,192.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,704.83 : 108,609.45 = 42,894.04 : x
  2. Step 2: Convert to fraction form
    78,704.83/108,609.45 = 42,894.04/x
  3. Step 3: Cross multiply
    78,704.83x = 108,609.45 × 42,894.04
  4. Step 4: Simplify right side
    78,704.83x = 4,658,698,092.68
  5. Step 5: Solve for x
    x = 4,658,698,092.68/78,704.83
  6. Step 6: Final answer
    x = 59,192.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.