Home / 115,315.41-172,991.61-48,756.24

Finding the Fourth Proportional to 115,315.41, 172,991.61 and 48,756.24

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Solution

The fourth proportional to 115,315.41, 172,991.61 and 48,756.24 is: 73,142.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,315.41 : 172,991.61 = 48,756.24 : x
  2. Step 2: Convert to fraction form
    115,315.41/172,991.61 = 48,756.24/x
  3. Step 3: Cross multiply
    115,315.41x = 172,991.61 × 48,756.24
  4. Step 4: Simplify right side
    115,315.41x = 8,434,420,455.15
  5. Step 5: Solve for x
    x = 8,434,420,455.15/115,315.41
  6. Step 6: Final answer
    x = 73,142.18

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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.