Home / 90,044.55-135,072.58-34,640.55

Finding the Fourth Proportional to 90,044.55, 135,072.58 and 34,640.55

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Solution

The fourth proportional to 90,044.55, 135,072.58 and 34,640.55 is: 51,963.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,044.55 : 135,072.58 = 34,640.55 : x
  2. Step 2: Convert to fraction form
    90,044.55/135,072.58 = 34,640.55/x
  3. Step 3: Cross multiply
    90,044.55x = 135,072.58 × 34,640.55
  4. Step 4: Simplify right side
    90,044.55x = 4,678,988,166.74
  5. Step 5: Solve for x
    x = 4,678,988,166.74/90,044.55
  6. Step 6: Final answer
    x = 51,963.04

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1.5x scale

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.