Home / 78,824.95-108,777.74-43,013.73

Finding the Fourth Proportional to 78,824.95, 108,777.74 and 43,013.73

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Solution

The fourth proportional to 78,824.95, 108,777.74 and 43,013.73 is: 59,358.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,824.95 : 108,777.74 = 43,013.73 : x
  2. Step 2: Convert to fraction form
    78,824.95/108,777.74 = 43,013.73/x
  3. Step 3: Cross multiply
    78,824.95x = 108,777.74 × 43,013.73
  4. Step 4: Simplify right side
    78,824.95x = 4,678,936,531.22
  5. Step 5: Solve for x
    x = 4,678,936,531.22/78,824.95
  6. Step 6: Final answer
    x = 59,358.57

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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.