Home / 85,634.22-128,451.33-23,304.72

Finding the Fourth Proportional to 85,634.22, 128,451.33 and 23,304.72

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Solution

The fourth proportional to 85,634.22, 128,451.33 and 23,304.72 is: 34,957.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,634.22 : 128,451.33 = 23,304.72 : x
  2. Step 2: Convert to fraction form
    85,634.22/128,451.33 = 23,304.72/x
  3. Step 3: Cross multiply
    85,634.22x = 128,451.33 × 23,304.72
  4. Step 4: Simplify right side
    85,634.22x = 2,993,522,279.28
  5. Step 5: Solve for x
    x = 2,993,522,279.28/85,634.22
  6. Step 6: Final answer
    x = 34,957.08

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Similar ratio
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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.