Home / 89,725.23-123,820.16-49,438.04

Finding the Fourth Proportional to 89,725.23, 123,820.16 and 49,438.04

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Solution

The fourth proportional to 89,725.23, 123,820.16 and 49,438.04 is: 68,224.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,725.23 : 123,820.16 = 49,438.04 : x
  2. Step 2: Convert to fraction form
    89,725.23/123,820.16 = 49,438.04/x
  3. Step 3: Cross multiply
    89,725.23x = 123,820.16 × 49,438.04
  4. Step 4: Simplify right side
    89,725.23x = 6,121,425,156.60
  5. Step 5: Solve for x
    x = 6,121,425,156.60/89,725.23
  6. Step 6: Final answer
    x = 68,224.12

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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.