Home / 79,170.74-109,251.45-43,359.98

Finding the Fourth Proportional to 79,170.74, 109,251.45 and 43,359.98

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Solution

The fourth proportional to 79,170.74, 109,251.45 and 43,359.98 is: 59,834.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,170.74 : 109,251.45 = 43,359.98 : x
  2. Step 2: Convert to fraction form
    79,170.74/109,251.45 = 43,359.98/x
  3. Step 3: Cross multiply
    79,170.74x = 109,251.45 × 43,359.98
  4. Step 4: Simplify right side
    79,170.74x = 4,737,140,686.97
  5. Step 5: Solve for x
    x = 4,737,140,686.97/79,170.74
  6. Step 6: Final answer
    x = 59,834.49

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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.