Home / 85,276.92-127,915.69-26,112.35

Finding the Fourth Proportional to 85,276.92, 127,915.69 and 26,112.35

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Solution

The fourth proportional to 85,276.92, 127,915.69 and 26,112.35 is: 39,168.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,276.92 : 127,915.69 = 26,112.35 : x
  2. Step 2: Convert to fraction form
    85,276.92/127,915.69 = 26,112.35/x
  3. Step 3: Cross multiply
    85,276.92x = 127,915.69 × 26,112.35
  4. Step 4: Simplify right side
    85,276.92x = 3,340,179,267.77
  5. Step 5: Solve for x
    x = 3,340,179,267.77/85,276.92
  6. Step 6: Final answer
    x = 39,168.62

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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.