Home / 85,394.28-128,091.15-23,064.78

Finding the Fourth Proportional to 85,394.28, 128,091.15 and 23,064.78

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Solution

The fourth proportional to 85,394.28, 128,091.15 and 23,064.78 is: 34,597.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,394.28 : 128,091.15 = 23,064.78 : x
  2. Step 2: Convert to fraction form
    85,394.28/128,091.15 = 23,064.78/x
  3. Step 3: Cross multiply
    85,394.28x = 128,091.15 × 23,064.78
  4. Step 4: Simplify right side
    85,394.28x = 2,954,394,194.70
  5. Step 5: Solve for x
    x = 2,954,394,194.70/85,394.28
  6. Step 6: Final answer
    x = 34,597.10

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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.