Home / 89,319.29-123,270.44-51,082.40

Finding the Fourth Proportional to 89,319.29, 123,270.44 and 51,082.40

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Solution

The fourth proportional to 89,319.29, 123,270.44 and 51,082.40 is: 70,499.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,319.29 : 123,270.44 = 51,082.40 : x
  2. Step 2: Convert to fraction form
    89,319.29/123,270.44 = 51,082.40/x
  3. Step 3: Cross multiply
    89,319.29x = 123,270.44 × 51,082.40
  4. Step 4: Simplify right side
    89,319.29x = 6,296,949,977.02
  5. Step 5: Solve for x
    x = 6,296,949,977.02/89,319.29
  6. Step 6: Final answer
    x = 70,499.33

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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.