Home / 89,126.87-122,983.38-53,303.81

Finding the Fourth Proportional to 89,126.87, 122,983.38 and 53,303.81

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Solution

The fourth proportional to 89,126.87, 122,983.38 and 53,303.81 is: 73,552.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,126.87 : 122,983.38 = 53,303.81 : x
  2. Step 2: Convert to fraction form
    89,126.87/122,983.38 = 53,303.81/x
  3. Step 3: Cross multiply
    89,126.87x = 122,983.38 × 53,303.81
  4. Step 4: Simplify right side
    89,126.87x = 6,555,482,105.76
  5. Step 5: Solve for x
    x = 6,555,482,105.76/89,126.87
  6. Step 6: Final answer
    x = 73,552.26

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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.