Home / 79,178.14-109,235.44-45,188.52

Finding the Fourth Proportional to 79,178.14, 109,235.44 and 45,188.52

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Solution

The fourth proportional to 79,178.14, 109,235.44 and 45,188.52 is: 62,342.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,178.14 : 109,235.44 = 45,188.52 : x
  2. Step 2: Convert to fraction form
    79,178.14/109,235.44 = 45,188.52/x
  3. Step 3: Cross multiply
    79,178.14x = 109,235.44 × 45,188.52
  4. Step 4: Simplify right side
    79,178.14x = 4,936,187,257.82
  5. Step 5: Solve for x
    x = 4,936,187,257.82/79,178.14
  6. Step 6: Final answer
    x = 62,342.80

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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.