Home / 78,934.96-118,389.66-29,002.78

Finding the Fourth Proportional to 78,934.96, 118,389.66 and 29,002.78

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Solution

The fourth proportional to 78,934.96, 118,389.66 and 29,002.78 is: 43,499.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,934.96 : 118,389.66 = 29,002.78 : x
  2. Step 2: Convert to fraction form
    78,934.96/118,389.66 = 29,002.78/x
  3. Step 3: Cross multiply
    78,934.96x = 118,389.66 × 29,002.78
  4. Step 4: Simplify right side
    78,934.96x = 3,433,629,263.25
  5. Step 5: Solve for x
    x = 3,433,629,263.25/78,934.96
  6. Step 6: Final answer
    x = 43,499.47

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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.