Home / 87,647.47-131,424.43-45,485.11

Finding the Fourth Proportional to 87,647.47, 131,424.43 and 45,485.11

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Solution

The fourth proportional to 87,647.47, 131,424.43 and 45,485.11 is: 68,203.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,647.47 : 131,424.43 = 45,485.11 : x
  2. Step 2: Convert to fraction form
    87,647.47/131,424.43 = 45,485.11/x
  3. Step 3: Cross multiply
    87,647.47x = 131,424.43 × 45,485.11
  4. Step 4: Simplify right side
    87,647.47x = 5,977,854,655.24
  5. Step 5: Solve for x
    x = 5,977,854,655.24/87,647.47
  6. Step 6: Final answer
    x = 68,203.39

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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.