Home / 99,578.38-137,355.36-59,262.05

Finding the Fourth Proportional to 99,578.38, 137,355.36 and 59,262.05

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Solution

The fourth proportional to 99,578.38, 137,355.36 and 59,262.05 is: 81,744.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,578.38 : 137,355.36 = 59,262.05 : x
  2. Step 2: Convert to fraction form
    99,578.38/137,355.36 = 59,262.05/x
  3. Step 3: Cross multiply
    99,578.38x = 137,355.36 × 59,262.05
  4. Step 4: Simplify right side
    99,578.38x = 8,139,960,212.09
  5. Step 5: Solve for x
    x = 8,139,960,212.09/99,578.38
  6. Step 6: Final answer
    x = 81,744.25

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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.