Home / 40,766.90-61,143.80-11,177.87

Finding the Fourth Proportional to 40,766.90, 61,143.80 and 11,177.87

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Solution

The fourth proportional to 40,766.90, 61,143.80 and 11,177.87 is: 16,765.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,766.90 : 61,143.80 = 11,177.87 : x
  2. Step 2: Convert to fraction form
    40,766.90/61,143.80 = 11,177.87/x
  3. Step 3: Cross multiply
    40,766.90x = 61,143.80 × 11,177.87
  4. Step 4: Simplify right side
    40,766.90x = 683,457,391.82
  5. Step 5: Solve for x
    x = 683,457,391.82/40,766.90
  6. Step 6: Final answer
    x = 16,765.01

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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.