Home / 91,165.10-136,576.78-53,612.94

Finding the Fourth Proportional to 91,165.10, 136,576.78 and 53,612.94

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Solution

The fourth proportional to 91,165.10, 136,576.78 and 53,612.94 is: 80,318.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,165.10 : 136,576.78 = 53,612.94 : x
  2. Step 2: Convert to fraction form
    91,165.10/136,576.78 = 53,612.94/x
  3. Step 3: Cross multiply
    91,165.10x = 136,576.78 × 53,612.94
  4. Step 4: Simplify right side
    91,165.10x = 7,322,282,622.99
  5. Step 5: Solve for x
    x = 7,322,282,622.99/91,165.10
  6. Step 6: Final answer
    x = 80,318.93

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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.