Home / 85,827.50-128,769.19-41,459.34

Finding the Fourth Proportional to 85,827.50, 128,769.19 and 41,459.34

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Solution

The fourth proportional to 85,827.50, 128,769.19 and 41,459.34 is: 62,202.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,827.50 : 128,769.19 = 41,459.34 : x
  2. Step 2: Convert to fraction form
    85,827.50/128,769.19 = 41,459.34/x
  3. Step 3: Cross multiply
    85,827.50x = 128,769.19 × 41,459.34
  4. Step 4: Simplify right side
    85,827.50x = 5,338,685,629.73
  5. Step 5: Solve for x
    x = 5,338,685,629.73/85,827.50
  6. Step 6: Final answer
    x = 62,202.51

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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.