Home / 85,110.22-127,685.58-42,886.54

Finding the Fourth Proportional to 85,110.22, 127,685.58 and 42,886.54

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Solution

The fourth proportional to 85,110.22, 127,685.58 and 42,886.54 is: 64,340.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,110.22 : 127,685.58 = 42,886.54 : x
  2. Step 2: Convert to fraction form
    85,110.22/127,685.58 = 42,886.54/x
  3. Step 3: Cross multiply
    85,110.22x = 127,685.58 × 42,886.54
  4. Step 4: Simplify right side
    85,110.22x = 5,475,992,734.09
  5. Step 5: Solve for x
    x = 5,475,992,734.09/85,110.22
  6. Step 6: Final answer
    x = 64,340.01

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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.