Home / 89,229.58-123,147.11-53,419.57

Finding the Fourth Proportional to 89,229.58, 123,147.11 and 53,419.57

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Solution

The fourth proportional to 89,229.58, 123,147.11 and 53,419.57 is: 73,725.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,229.58 : 123,147.11 = 53,419.57 : x
  2. Step 2: Convert to fraction form
    89,229.58/123,147.11 = 53,419.57/x
  3. Step 3: Cross multiply
    89,229.58x = 123,147.11 × 53,419.57
  4. Step 4: Simplify right side
    89,229.58x = 6,578,464,780.11
  5. Step 5: Solve for x
    x = 6,578,464,780.11/89,229.58
  6. Step 6: Final answer
    x = 73,725.16

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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.