Home / 115,049.10-172,638.45-44,919.30

Finding the Fourth Proportional to 115,049.10, 172,638.45 and 44,919.30

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Solution

The fourth proportional to 115,049.10, 172,638.45 and 44,919.30 is: 67,404.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,049.10 : 172,638.45 = 44,919.30 : x
  2. Step 2: Convert to fraction form
    115,049.10/172,638.45 = 44,919.30/x
  3. Step 3: Cross multiply
    115,049.10x = 172,638.45 × 44,919.30
  4. Step 4: Simplify right side
    115,049.10x = 7,754,798,327.09
  5. Step 5: Solve for x
    x = 7,754,798,327.09/115,049.10
  6. Step 6: Final answer
    x = 67,404.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.