Home / 77,563.72-116,359.22-40,113.60

Finding the Fourth Proportional to 77,563.72, 116,359.22 and 40,113.60

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Solution

The fourth proportional to 77,563.72, 116,359.22 and 40,113.60 is: 60,177.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,563.72 : 116,359.22 = 40,113.60 : x
  2. Step 2: Convert to fraction form
    77,563.72/116,359.22 = 40,113.60/x
  3. Step 3: Cross multiply
    77,563.72x = 116,359.22 × 40,113.60
  4. Step 4: Simplify right side
    77,563.72x = 4,667,587,207.39
  5. Step 5: Solve for x
    x = 4,667,587,207.39/77,563.72
  6. Step 6: Final answer
    x = 60,177.45

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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.