Home / 89,151.20-123,041.25-55,170.63

Finding the Fourth Proportional to 89,151.20, 123,041.25 and 55,170.63

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Solution

The fourth proportional to 89,151.20, 123,041.25 and 55,170.63 is: 76,143.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,151.20 : 123,041.25 = 55,170.63 : x
  2. Step 2: Convert to fraction form
    89,151.20/123,041.25 = 55,170.63/x
  3. Step 3: Cross multiply
    89,151.20x = 123,041.25 × 55,170.63
  4. Step 4: Simplify right side
    89,151.20x = 6,788,262,817.08
  5. Step 5: Solve for x
    x = 6,788,262,817.08/89,151.20
  6. Step 6: Final answer
    x = 76,143.26

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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.