Home / 85,508.73-128,263.10-23,179.23

Finding the Fourth Proportional to 85,508.73, 128,263.10 and 23,179.23

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Solution

The fourth proportional to 85,508.73, 128,263.10 and 23,179.23 is: 34,768.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,508.73 : 128,263.10 = 23,179.23 : x
  2. Step 2: Convert to fraction form
    85,508.73/128,263.10 = 23,179.23/x
  3. Step 3: Cross multiply
    85,508.73x = 128,263.10 × 23,179.23
  4. Step 4: Simplify right side
    85,508.73x = 2,973,039,779.52
  5. Step 5: Solve for x
    x = 2,973,039,779.52/85,508.73
  6. Step 6: Final answer
    x = 34,768.85

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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.