Home / 89,431.08-123,372.36-64,295.16

Finding the Fourth Proportional to 89,431.08, 123,372.36 and 64,295.16

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Solution

The fourth proportional to 89,431.08, 123,372.36 and 64,295.16 is: 88,696.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,431.08 : 123,372.36 = 64,295.16 : x
  2. Step 2: Convert to fraction form
    89,431.08/123,372.36 = 64,295.16/x
  3. Step 3: Cross multiply
    89,431.08x = 123,372.36 × 64,295.16
  4. Step 4: Simplify right side
    89,431.08x = 7,932,245,625.78
  5. Step 5: Solve for x
    x = 7,932,245,625.78/89,431.08
  6. Step 6: Final answer
    x = 88,696.74

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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.