Home / 89,695.69-123,770.77-55,234.95

Finding the Fourth Proportional to 89,695.69, 123,770.77 and 55,234.95

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Solution

The fourth proportional to 89,695.69, 123,770.77 and 55,234.95 is: 76,218.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,695.69 : 123,770.77 = 55,234.95 : x
  2. Step 2: Convert to fraction form
    89,695.69/123,770.77 = 55,234.95/x
  3. Step 3: Cross multiply
    89,695.69x = 123,770.77 × 55,234.95
  4. Step 4: Simplify right side
    89,695.69x = 6,836,471,690.18
  5. Step 5: Solve for x
    x = 6,836,471,690.18/89,695.69
  6. Step 6: Final answer
    x = 76,218.51

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1.5x scale

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.