Home / 79,187.15-109,280.03-45,194.95

Finding the Fourth Proportional to 79,187.15, 109,280.03 and 45,194.95

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Solution

The fourth proportional to 79,187.15, 109,280.03 and 45,194.95 is: 62,370.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,187.15 : 109,280.03 = 45,194.95 : x
  2. Step 2: Convert to fraction form
    79,187.15/109,280.03 = 45,194.95/x
  3. Step 3: Cross multiply
    79,187.15x = 109,280.03 × 45,194.95
  4. Step 4: Simplify right side
    79,187.15x = 4,938,905,491.85
  5. Step 5: Solve for x
    x = 4,938,905,491.85/79,187.15
  6. Step 6: Final answer
    x = 62,370.04

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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.