Home / 85,795.23-128,648.94-35,861.70

Finding the Fourth Proportional to 85,795.23, 128,648.94 and 35,861.70

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Solution

The fourth proportional to 85,795.23, 128,648.94 and 35,861.70 is: 53,774.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,795.23 : 128,648.94 = 35,861.70 : x
  2. Step 2: Convert to fraction form
    85,795.23/128,648.94 = 35,861.70/x
  3. Step 3: Cross multiply
    85,795.23x = 128,648.94 × 35,861.70
  4. Step 4: Simplify right side
    85,795.23x = 4,613,569,691.60
  5. Step 5: Solve for x
    x = 4,613,569,691.60/85,795.23
  6. Step 6: Final answer
    x = 53,774.20

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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.