Home / 72,425.17-99,951.35-40,163.48

Finding the Fourth Proportional to 72,425.17, 99,951.35 and 40,163.48

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Solution

The fourth proportional to 72,425.17, 99,951.35 and 40,163.48 is: 55,428.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,425.17 : 99,951.35 = 40,163.48 : x
  2. Step 2: Convert to fraction form
    72,425.17/99,951.35 = 40,163.48/x
  3. Step 3: Cross multiply
    72,425.17x = 99,951.35 × 40,163.48
  4. Step 4: Simplify right side
    72,425.17x = 4,014,393,546.94
  5. Step 5: Solve for x
    x = 4,014,393,546.94/72,425.17
  6. Step 6: Final answer
    x = 55,428.16

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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.