Home / 85,087.29-127,568.30-28,912.26

Finding the Fourth Proportional to 85,087.29, 127,568.30 and 28,912.26

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Solution

The fourth proportional to 85,087.29, 127,568.30 and 28,912.26 is: 43,347.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,087.29 : 127,568.30 = 28,912.26 : x
  2. Step 2: Convert to fraction form
    85,087.29/127,568.30 = 28,912.26/x
  3. Step 3: Cross multiply
    85,087.29x = 127,568.30 × 28,912.26
  4. Step 4: Simplify right side
    85,087.29x = 3,688,287,712.80
  5. Step 5: Solve for x
    x = 3,688,287,712.80/85,087.29
  6. Step 6: Final answer
    x = 43,347.11

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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.