Home / 72,429.52-99,950.98-40,163.96

Finding the Fourth Proportional to 72,429.52, 99,950.98 and 40,163.96

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Solution

The fourth proportional to 72,429.52, 99,950.98 and 40,163.96 is: 55,425.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,429.52 : 99,950.98 = 40,163.96 : x
  2. Step 2: Convert to fraction form
    72,429.52/99,950.98 = 40,163.96/x
  3. Step 3: Cross multiply
    72,429.52x = 99,950.98 × 40,163.96
  4. Step 4: Simplify right side
    72,429.52x = 4,014,427,162.68
  5. Step 5: Solve for x
    x = 4,014,427,162.68/72,429.52
  6. Step 6: Final answer
    x = 55,425.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.