Home / 82,516.19-123,750.03-35,130.74

Finding the Fourth Proportional to 82,516.19, 123,750.03 and 35,130.74

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Solution

The fourth proportional to 82,516.19, 123,750.03 and 35,130.74 is: 52,685.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,516.19 : 123,750.03 = 35,130.74 : x
  2. Step 2: Convert to fraction form
    82,516.19/123,750.03 = 35,130.74/x
  3. Step 3: Cross multiply
    82,516.19x = 123,750.03 × 35,130.74
  4. Step 4: Simplify right side
    82,516.19x = 4,347,429,792.35
  5. Step 5: Solve for x
    x = 4,347,429,792.35/82,516.19
  6. Step 6: Final answer
    x = 52,685.78

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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.