Home / 99,269.29-136,992.68-53,947.90

Finding the Fourth Proportional to 99,269.29, 136,992.68 and 53,947.90

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Solution

The fourth proportional to 99,269.29, 136,992.68 and 53,947.90 is: 74,448.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,269.29 : 136,992.68 = 53,947.90 : x
  2. Step 2: Convert to fraction form
    99,269.29/136,992.68 = 53,947.90/x
  3. Step 3: Cross multiply
    99,269.29x = 136,992.68 × 53,947.90
  4. Step 4: Simplify right side
    99,269.29x = 7,390,467,401.37
  5. Step 5: Solve for x
    x = 7,390,467,401.37/99,269.29
  6. Step 6: Final answer
    x = 74,448.68

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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.