Home / 78,859.49-118,273.23-28,922.58

Finding the Fourth Proportional to 78,859.49, 118,273.23 and 28,922.58

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Solution

The fourth proportional to 78,859.49, 118,273.23 and 28,922.58 is: 43,378.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,859.49 : 118,273.23 = 28,922.58 : x
  2. Step 2: Convert to fraction form
    78,859.49/118,273.23 = 28,922.58/x
  3. Step 3: Cross multiply
    78,859.49x = 118,273.23 × 28,922.58
  4. Step 4: Simplify right side
    78,859.49x = 3,420,766,956.53
  5. Step 5: Solve for x
    x = 3,420,766,956.53/78,859.49
  6. Step 6: Final answer
    x = 43,378.00

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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.