Home / 79,188.15-109,281.41-45,195.95

Finding the Fourth Proportional to 79,188.15, 109,281.41 and 45,195.95

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Solution

The fourth proportional to 79,188.15, 109,281.41 and 45,195.95 is: 62,371.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,188.15 : 109,281.41 = 45,195.95 : x
  2. Step 2: Convert to fraction form
    79,188.15/109,281.41 = 45,195.95/x
  3. Step 3: Cross multiply
    79,188.15x = 109,281.41 × 45,195.95
  4. Step 4: Simplify right side
    79,188.15x = 4,939,077,142.29
  5. Step 5: Solve for x
    x = 4,939,077,142.29/79,188.15
  6. Step 6: Final answer
    x = 62,371.42

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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.