Home / 89,647.03-123,713.35-51,408.02

Finding the Fourth Proportional to 89,647.03, 123,713.35 and 51,408.02

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Solution

The fourth proportional to 89,647.03, 123,713.35 and 51,408.02 is: 70,943.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,647.03 : 123,713.35 = 51,408.02 : x
  2. Step 2: Convert to fraction form
    89,647.03/123,713.35 = 51,408.02/x
  3. Step 3: Cross multiply
    89,647.03x = 123,713.35 × 51,408.02
  4. Step 4: Simplify right side
    89,647.03x = 6,359,858,000.53
  5. Step 5: Solve for x
    x = 6,359,858,000.53/89,647.03
  6. Step 6: Final answer
    x = 70,943.32

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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.