Home / 85,256.64-127,963.74-43,166.28

Finding the Fourth Proportional to 85,256.64, 127,963.74 and 43,166.28

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Solution

The fourth proportional to 85,256.64, 127,963.74 and 43,166.28 is: 64,789.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,256.64 : 127,963.74 = 43,166.28 : x
  2. Step 2: Convert to fraction form
    85,256.64/127,963.74 = 43,166.28/x
  3. Step 3: Cross multiply
    85,256.64x = 127,963.74 × 43,166.28
  4. Step 4: Simplify right side
    85,256.64x = 5,523,718,630.69
  5. Step 5: Solve for x
    x = 5,523,718,630.69/85,256.64
  6. Step 6: Final answer
    x = 64,789.31

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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.