Home / 93,640.38-129,223.71-51,198.90

Finding the Fourth Proportional to 93,640.38, 129,223.71 and 51,198.90

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Solution

The fourth proportional to 93,640.38, 129,223.71 and 51,198.90 is: 70,654.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,640.38 : 129,223.71 = 51,198.90 : x
  2. Step 2: Convert to fraction form
    93,640.38/129,223.71 = 51,198.90/x
  3. Step 3: Cross multiply
    93,640.38x = 129,223.71 × 51,198.90
  4. Step 4: Simplify right side
    93,640.38x = 6,616,111,805.92
  5. Step 5: Solve for x
    x = 6,616,111,805.92/93,640.38
  6. Step 6: Final answer
    x = 70,654.47

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1.5x scale

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.