Home / 90,916.68-136,395.68-27,742.45

Finding the Fourth Proportional to 90,916.68, 136,395.68 and 27,742.45

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Solution

The fourth proportional to 90,916.68, 136,395.68 and 27,742.45 is: 41,619.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,916.68 : 136,395.68 = 27,742.45 : x
  2. Step 2: Convert to fraction form
    90,916.68/136,395.68 = 27,742.45/x
  3. Step 3: Cross multiply
    90,916.68x = 136,395.68 × 27,742.45
  4. Step 4: Simplify right side
    90,916.68x = 3,783,950,332.62
  5. Step 5: Solve for x
    x = 3,783,950,332.62/90,916.68
  6. Step 6: Final answer
    x = 41,619.98

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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.