Home / 98,839.47-136,408.25-56,404.38

Finding the Fourth Proportional to 98,839.47, 136,408.25 and 56,404.38

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Solution

The fourth proportional to 98,839.47, 136,408.25 and 56,404.38 is: 77,843.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,839.47 : 136,408.25 = 56,404.38 : x
  2. Step 2: Convert to fraction form
    98,839.47/136,408.25 = 56,404.38/x
  3. Step 3: Cross multiply
    98,839.47x = 136,408.25 × 56,404.38
  4. Step 4: Simplify right side
    98,839.47x = 7,694,022,486.11
  5. Step 5: Solve for x
    x = 7,694,022,486.11/98,839.47
  6. Step 6: Final answer
    x = 77,843.62

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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.