Home / 45,911.10-68,769.45-40,986.30

Finding the Fourth Proportional to 45,911.10, 68,769.45 and 40,986.30

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Solution

The fourth proportional to 45,911.10, 68,769.45 and 40,986.30 is: 61,392.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,911.10 : 68,769.45 = 40,986.30 : x
  2. Step 2: Convert to fraction form
    45,911.10/68,769.45 = 40,986.30/x
  3. Step 3: Cross multiply
    45,911.10x = 68,769.45 × 40,986.30
  4. Step 4: Simplify right side
    45,911.10x = 2,818,605,308.54
  5. Step 5: Solve for x
    x = 2,818,605,308.54/45,911.10
  6. Step 6: Final answer
    x = 61,392.68

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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.