Home / 85,178.73-127,676.34-40,710.93

Finding the Fourth Proportional to 85,178.73, 127,676.34 and 40,710.93

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Solution

The fourth proportional to 85,178.73, 127,676.34 and 40,710.93 is: 61,022.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,178.73 : 127,676.34 = 40,710.93 : x
  2. Step 2: Convert to fraction form
    85,178.73/127,676.34 = 40,710.93/x
  3. Step 3: Cross multiply
    85,178.73x = 127,676.34 × 40,710.93
  4. Step 4: Simplify right side
    85,178.73x = 5,197,822,540.40
  5. Step 5: Solve for x
    x = 5,197,822,540.40/85,178.73
  6. Step 6: Final answer
    x = 61,022.54

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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.