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Finding the Fourth Proportional to 85,064.40, 127,596.60 and 21,884.40

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Solution

The fourth proportional to 85,064.40, 127,596.60 and 21,884.40 is: 32,826.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,064.40 : 127,596.60 = 21,884.40 : x
  2. Step 2: Convert to fraction form
    85,064.40/127,596.60 = 21,884.40/x
  3. Step 3: Cross multiply
    85,064.40x = 127,596.60 × 21,884.40
  4. Step 4: Simplify right side
    85,064.40x = 2,792,375,033.04
  5. Step 5: Solve for x
    x = 2,792,375,033.04/85,064.40
  6. Step 6: Final answer
    x = 32,826.60

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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.